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Finding the Fourth Proportional to 9,008.88, 13,513.28 and 5,008.80

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Solution

The fourth proportional to 9,008.88, 13,513.28 and 5,008.80 is: 7,513.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,008.88 : 13,513.28 = 5,008.80 : x
  2. Step 2: Convert to fraction form
    9,008.88/13,513.28 = 5,008.80/x
  3. Step 3: Cross multiply
    9,008.88x = 13,513.28 × 5,008.80
  4. Step 4: Simplify right side
    9,008.88x = 67,685,316.86
  5. Step 5: Solve for x
    x = 67,685,316.86/9,008.88
  6. Step 6: Final answer
    x = 7,513.18

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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.