Home / 14,121.26-19,487.54-7,747.74

Finding the Fourth Proportional to 14,121.26, 19,487.54 and 7,747.74

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Solution

The fourth proportional to 14,121.26, 19,487.54 and 7,747.74 is: 10,691.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.26 : 19,487.54 = 7,747.74 : x
  2. Step 2: Convert to fraction form
    14,121.26/19,487.54 = 7,747.74/x
  3. Step 3: Cross multiply
    14,121.26x = 19,487.54 × 7,747.74
  4. Step 4: Simplify right side
    14,121.26x = 150,984,412.53
  5. Step 5: Solve for x
    x = 150,984,412.53/14,121.26
  6. Step 6: Final answer
    x = 10,691.99

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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.