Home / 16,560.75-22,854.20-9,108.75

Finding the Fourth Proportional to 16,560.75, 22,854.20 and 9,108.75

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Solution

The fourth proportional to 16,560.75, 22,854.20 and 9,108.75 is: 12,570.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,560.75 : 22,854.20 = 9,108.75 : x
  2. Step 2: Convert to fraction form
    16,560.75/22,854.20 = 9,108.75/x
  3. Step 3: Cross multiply
    16,560.75x = 22,854.20 × 9,108.75
  4. Step 4: Simplify right side
    16,560.75x = 208,173,148.71
  5. Step 5: Solve for x
    x = 208,173,148.71/16,560.75
  6. Step 6: Final answer
    x = 12,570.27

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Half scale
Find fourth proportional to 33,121.50, 45,708.39 and 18,217.50
Double scale
Find fourth proportional to 16,561.75, 22,855.58 and 9,109.75
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.