Home / 14,218.43-21,331.15-6,425.15

Finding the Fourth Proportional to 14,218.43, 21,331.15 and 6,425.15

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Solution

The fourth proportional to 14,218.43, 21,331.15 and 6,425.15 is: 9,639.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,218.43 : 21,331.15 = 6,425.15 : x
  2. Step 2: Convert to fraction form
    14,218.43/21,331.15 = 6,425.15/x
  3. Step 3: Cross multiply
    14,218.43x = 21,331.15 × 6,425.15
  4. Step 4: Simplify right side
    14,218.43x = 137,055,715.70
  5. Step 5: Solve for x
    x = 137,055,715.70/14,218.43
  6. Step 6: Final answer
    x = 9,639.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.