Home / 12,439.17-17,169.66-7,406.91

Finding the Fourth Proportional to 12,439.17, 17,169.66 and 7,406.91

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Solution

The fourth proportional to 12,439.17, 17,169.66 and 7,406.91 is: 10,223.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,439.17 : 17,169.66 = 7,406.91 : x
  2. Step 2: Convert to fraction form
    12,439.17/17,169.66 = 7,406.91/x
  3. Step 3: Cross multiply
    12,439.17x = 17,169.66 × 7,406.91
  4. Step 4: Simplify right side
    12,439.17x = 127,174,126.35
  5. Step 5: Solve for x
    x = 127,174,126.35/12,439.17
  6. Step 6: Final answer
    x = 10,223.68

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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.