Home / 14,780.16-20,368.56-10,581.12

Finding the Fourth Proportional to 14,780.16, 20,368.56 and 10,581.12

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Solution

The fourth proportional to 14,780.16, 20,368.56 and 10,581.12 is: 14,581.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,780.16 : 20,368.56 = 10,581.12 : x
  2. Step 2: Convert to fraction form
    14,780.16/20,368.56 = 10,581.12/x
  3. Step 3: Cross multiply
    14,780.16x = 20,368.56 × 10,581.12
  4. Step 4: Simplify right side
    14,780.16x = 215,522,177.59
  5. Step 5: Solve for x
    x = 215,522,177.59/14,780.16
  6. Step 6: Final answer
    x = 14,581.86

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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.