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Finding the Fourth Proportional to 8,899.92, 12,281.76 and 5,365.08

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Solution

The fourth proportional to 8,899.92, 12,281.76 and 5,365.08 is: 7,403.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,899.92 : 12,281.76 = 5,365.08 : x
  2. Step 2: Convert to fraction form
    8,899.92/12,281.76 = 5,365.08/x
  3. Step 3: Cross multiply
    8,899.92x = 12,281.76 × 5,365.08
  4. Step 4: Simplify right side
    8,899.92x = 65,892,624.94
  5. Step 5: Solve for x
    x = 65,892,624.94/8,899.92
  6. Step 6: Final answer
    x = 7,403.73

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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.