Home / 14,306.60-21,420.28-10,785.94

Finding the Fourth Proportional to 14,306.60, 21,420.28 and 10,785.94

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Solution

The fourth proportional to 14,306.60, 21,420.28 and 10,785.94 is: 16,149.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,306.60 : 21,420.28 = 10,785.94 : x
  2. Step 2: Convert to fraction form
    14,306.60/21,420.28 = 10,785.94/x
  3. Step 3: Cross multiply
    14,306.60x = 21,420.28 × 10,785.94
  4. Step 4: Simplify right side
    14,306.60x = 231,037,854.86
  5. Step 5: Solve for x
    x = 231,037,854.86/14,306.60
  6. Step 6: Final answer
    x = 16,149.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.