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Finding the Fourth Proportional to 8,879.13, 12,250.31 and 5,101.29

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Solution

The fourth proportional to 8,879.13, 12,250.31 and 5,101.29 is: 7,038.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,879.13 : 12,250.31 = 5,101.29 : x
  2. Step 2: Convert to fraction form
    8,879.13/12,250.31 = 5,101.29/x
  3. Step 3: Cross multiply
    8,879.13x = 12,250.31 × 5,101.29
  4. Step 4: Simplify right side
    8,879.13x = 62,492,358.39
  5. Step 5: Solve for x
    x = 62,492,358.39/8,879.13
  6. Step 6: Final answer
    x = 7,038.12

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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.