Home / 14,859.28-20,505.92-10,143.44

Finding the Fourth Proportional to 14,859.28, 20,505.92 and 10,143.44

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Solution

The fourth proportional to 14,859.28, 20,505.92 and 10,143.44 is: 13,998.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,859.28 : 20,505.92 = 10,143.44 : x
  2. Step 2: Convert to fraction form
    14,859.28/20,505.92 = 10,143.44/x
  3. Step 3: Cross multiply
    14,859.28x = 20,505.92 × 10,143.44
  4. Step 4: Simplify right side
    14,859.28x = 208,000,569.16
  5. Step 5: Solve for x
    x = 208,000,569.16/14,859.28
  6. Step 6: Final answer
    x = 13,998.02

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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.