Home / 11,559.61-15,961.14-9,581.59

Finding the Fourth Proportional to 11,559.61, 15,961.14 and 9,581.59

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Solution

The fourth proportional to 11,559.61, 15,961.14 and 9,581.59 is: 13,229.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,559.61 : 15,961.14 = 9,581.59 : x
  2. Step 2: Convert to fraction form
    11,559.61/15,961.14 = 9,581.59/x
  3. Step 3: Cross multiply
    11,559.61x = 15,961.14 × 9,581.59
  4. Step 4: Simplify right side
    11,559.61x = 152,932,971.70
  5. Step 5: Solve for x
    x = 152,932,971.70/11,559.61
  6. Step 6: Final answer
    x = 13,229.95

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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.