Home / 15,102.39-20,841.27-8,814.75

Finding the Fourth Proportional to 15,102.39, 20,841.27 and 8,814.75

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Solution

The fourth proportional to 15,102.39, 20,841.27 and 8,814.75 is: 12,164.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,102.39 : 20,841.27 = 8,814.75 : x
  2. Step 2: Convert to fraction form
    15,102.39/20,841.27 = 8,814.75/x
  3. Step 3: Cross multiply
    15,102.39x = 20,841.27 × 8,814.75
  4. Step 4: Simplify right side
    15,102.39x = 183,710,584.73
  5. Step 5: Solve for x
    x = 183,710,584.73/15,102.39
  6. Step 6: Final answer
    x = 12,164.34

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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.