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Finding the Fourth Proportional to 10,085.12, 15,063.12 and 8,007.52

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Solution

The fourth proportional to 10,085.12, 15,063.12 and 8,007.52 is: 11,960.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,085.12 : 15,063.12 = 8,007.52 : x
  2. Step 2: Convert to fraction form
    10,085.12/15,063.12 = 8,007.52/x
  3. Step 3: Cross multiply
    10,085.12x = 15,063.12 × 8,007.52
  4. Step 4: Simplify right side
    10,085.12x = 120,618,234.66
  5. Step 5: Solve for x
    x = 120,618,234.66/10,085.12
  6. Step 6: Final answer
    x = 11,960.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.