Home / 10,403.56-14,356.92-5,687.85

Finding the Fourth Proportional to 10,403.56, 14,356.92 and 5,687.85

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Solution

The fourth proportional to 10,403.56, 14,356.92 and 5,687.85 is: 7,849.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,403.56 : 14,356.92 = 5,687.85 : x
  2. Step 2: Convert to fraction form
    10,403.56/14,356.92 = 5,687.85/x
  3. Step 3: Cross multiply
    10,403.56x = 14,356.92 × 5,687.85
  4. Step 4: Simplify right side
    10,403.56x = 81,660,007.42
  5. Step 5: Solve for x
    x = 81,660,007.42/10,403.56
  6. Step 6: Final answer
    x = 7,849.24

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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.