Home / 10,425.53-14,387.28-5,709.81

Finding the Fourth Proportional to 10,425.53, 14,387.28 and 5,709.81

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Solution

The fourth proportional to 10,425.53, 14,387.28 and 5,709.81 is: 7,879.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,425.53 : 14,387.28 = 5,709.81 : x
  2. Step 2: Convert to fraction form
    10,425.53/14,387.28 = 5,709.81/x
  3. Step 3: Cross multiply
    10,425.53x = 14,387.28 × 5,709.81
  4. Step 4: Simplify right side
    10,425.53x = 82,148,635.22
  5. Step 5: Solve for x
    x = 82,148,635.22/10,425.53
  6. Step 6: Final answer
    x = 7,879.56

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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.