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Finding the Fourth Proportional to 15,047.68, 20,765.52 and 8,333.32

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Solution

The fourth proportional to 15,047.68, 20,765.52 and 8,333.32 is: 11,499.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,047.68 : 20,765.52 = 8,333.32 : x
  2. Step 2: Convert to fraction form
    15,047.68/20,765.52 = 8,333.32/x
  3. Step 3: Cross multiply
    15,047.68x = 20,765.52 × 8,333.32
  4. Step 4: Simplify right side
    15,047.68x = 173,045,723.13
  5. Step 5: Solve for x
    x = 173,045,723.13/15,047.68
  6. Step 6: Final answer
    x = 11,499.83

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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.