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Finding the Fourth Proportional to 9,000.48, 13,401 and 8,877.60

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Solution

The fourth proportional to 9,000.48, 13,401 and 8,877.60 is: 13,218.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,000.48 : 13,401 = 8,877.60 : x
  2. Step 2: Convert to fraction form
    9,000.48/13,401 = 8,877.60/x
  3. Step 3: Cross multiply
    9,000.48x = 13,401 × 8,877.60
  4. Step 4: Simplify right side
    9,000.48x = 118,968,717.60
  5. Step 5: Solve for x
    x = 118,968,717.60/9,000.48
  6. Step 6: Final answer
    x = 13,218.04

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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.