Home / 11,060.38-15,284.19-8,721.10

Finding the Fourth Proportional to 11,060.38, 15,284.19 and 8,721.10

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Solution

The fourth proportional to 11,060.38, 15,284.19 and 8,721.10 is: 12,051.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,060.38 : 15,284.19 = 8,721.10 : x
  2. Step 2: Convert to fraction form
    11,060.38/15,284.19 = 8,721.10/x
  3. Step 3: Cross multiply
    11,060.38x = 15,284.19 × 8,721.10
  4. Step 4: Simplify right side
    11,060.38x = 133,294,949.41
  5. Step 5: Solve for x
    x = 133,294,949.41/11,060.38
  6. Step 6: Final answer
    x = 12,051.57

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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.