Home / 9,660.47-13,333.11-5,681.75

Finding the Fourth Proportional to 9,660.47, 13,333.11 and 5,681.75

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Solution

The fourth proportional to 9,660.47, 13,333.11 and 5,681.75 is: 7,841.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,660.47 : 13,333.11 = 5,681.75 : x
  2. Step 2: Convert to fraction form
    9,660.47/13,333.11 = 5,681.75/x
  3. Step 3: Cross multiply
    9,660.47x = 13,333.11 × 5,681.75
  4. Step 4: Simplify right side
    9,660.47x = 75,755,309.77
  5. Step 5: Solve for x
    x = 75,755,309.77/9,660.47
  6. Step 6: Final answer
    x = 7,841.79

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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.