Home / 9,966.15-13,752.90-5,989.45

Finding the Fourth Proportional to 9,966.15, 13,752.90 and 5,989.45

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Solution

The fourth proportional to 9,966.15, 13,752.90 and 5,989.45 is: 8,265.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,966.15 : 13,752.90 = 5,989.45 : x
  2. Step 2: Convert to fraction form
    9,966.15/13,752.90 = 5,989.45/x
  3. Step 3: Cross multiply
    9,966.15x = 13,752.90 × 5,989.45
  4. Step 4: Simplify right side
    9,966.15x = 82,372,306.91
  5. Step 5: Solve for x
    x = 82,372,306.91/9,966.15
  6. Step 6: Final answer
    x = 8,265.21

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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.