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Finding the Fourth Proportional to 8,980.10, 13,470.17 and 8,967.12

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Solution

The fourth proportional to 8,980.10, 13,470.17 and 8,967.12 is: 13,450.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,980.10 : 13,470.17 = 8,967.12 : x
  2. Step 2: Convert to fraction form
    8,980.10/13,470.17 = 8,967.12/x
  3. Step 3: Cross multiply
    8,980.10x = 13,470.17 × 8,967.12
  4. Step 4: Simplify right side
    8,980.10x = 120,788,630.81
  5. Step 5: Solve for x
    x = 120,788,630.81/8,980.10
  6. Step 6: Final answer
    x = 13,450.70

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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.