Home / 11,331.11-15,581.48-9,836.42

Finding the Fourth Proportional to 11,331.11, 15,581.48 and 9,836.42

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Solution

The fourth proportional to 11,331.11, 15,581.48 and 9,836.42 is: 13,526.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,331.11 : 15,581.48 = 9,836.42 : x
  2. Step 2: Convert to fraction form
    11,331.11/15,581.48 = 9,836.42/x
  3. Step 3: Cross multiply
    11,331.11x = 15,581.48 × 9,836.42
  4. Step 4: Simplify right side
    11,331.11x = 153,265,854.41
  5. Step 5: Solve for x
    x = 153,265,854.41/11,331.11
  6. Step 6: Final answer
    x = 13,526.11

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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.