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Finding the Fourth Proportional to 9,000.76, 13,508.07 and 5,879.92

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Solution

The fourth proportional to 9,000.76, 13,508.07 and 5,879.92 is: 8,824.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,000.76 : 13,508.07 = 5,879.92 : x
  2. Step 2: Convert to fraction form
    9,000.76/13,508.07 = 5,879.92/x
  3. Step 3: Cross multiply
    9,000.76x = 13,508.07 × 5,879.92
  4. Step 4: Simplify right side
    9,000.76x = 79,426,370.95
  5. Step 5: Solve for x
    x = 79,426,370.95/9,000.76
  6. Step 6: Final answer
    x = 8,824.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.