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Finding the Fourth Proportional to 8,700.01, 12,008.22 and 5,515.19

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Solution

The fourth proportional to 8,700.01, 12,008.22 and 5,515.19 is: 7,612.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,700.01 : 12,008.22 = 5,515.19 : x
  2. Step 2: Convert to fraction form
    8,700.01/12,008.22 = 5,515.19/x
  3. Step 3: Cross multiply
    8,700.01x = 12,008.22 × 5,515.19
  4. Step 4: Simplify right side
    8,700.01x = 66,227,625.70
  5. Step 5: Solve for x
    x = 66,227,625.70/8,700.01
  6. Step 6: Final answer
    x = 7,612.36

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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.