Home / 12,148.70-16,759.46-7,109.80

Finding the Fourth Proportional to 12,148.70, 16,759.46 and 7,109.80

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Solution

The fourth proportional to 12,148.70, 16,759.46 and 7,109.80 is: 9,808.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,148.70 : 16,759.46 = 7,109.80 : x
  2. Step 2: Convert to fraction form
    12,148.70/16,759.46 = 7,109.80/x
  3. Step 3: Cross multiply
    12,148.70x = 16,759.46 × 7,109.80
  4. Step 4: Simplify right side
    12,148.70x = 119,156,384.58
  5. Step 5: Solve for x
    x = 119,156,384.58/12,148.70
  6. Step 6: Final answer
    x = 9,808.16

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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.