Home / 9,966.31-13,749.91-6,610.75

Finding the Fourth Proportional to 9,966.31, 13,749.91 and 6,610.75

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Solution

The fourth proportional to 9,966.31, 13,749.91 and 6,610.75 is: 9,120.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,966.31 : 13,749.91 = 6,610.75 : x
  2. Step 2: Convert to fraction form
    9,966.31/13,749.91 = 6,610.75/x
  3. Step 3: Cross multiply
    9,966.31x = 13,749.91 × 6,610.75
  4. Step 4: Simplify right side
    9,966.31x = 90,897,217.53
  5. Step 5: Solve for x
    x = 90,897,217.53/9,966.31
  6. Step 6: Final answer
    x = 9,120.45

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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.