Home / 7,218.59-9,966.24-5,895.45

Finding the Fourth Proportional to 7,218.59, 9,966.24 and 5,895.45

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Solution

The fourth proportional to 7,218.59, 9,966.24 and 5,895.45 is: 8,139.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218.59 : 9,966.24 = 5,895.45 : x
  2. Step 2: Convert to fraction form
    7,218.59/9,966.24 = 5,895.45/x
  3. Step 3: Cross multiply
    7,218.59x = 9,966.24 × 5,895.45
  4. Step 4: Simplify right side
    7,218.59x = 58,755,469.61
  5. Step 5: Solve for x
    x = 58,755,469.61/7,218.59
  6. Step 6: Final answer
    x = 8,139.47

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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.