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Finding the Fourth Proportional to 8,617.80, 11,897.10 and 5,799.99

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Solution

The fourth proportional to 8,617.80, 11,897.10 and 5,799.99 is: 8,007.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,617.80 : 11,897.10 = 5,799.99 : x
  2. Step 2: Convert to fraction form
    8,617.80/11,897.10 = 5,799.99/x
  3. Step 3: Cross multiply
    8,617.80x = 11,897.10 × 5,799.99
  4. Step 4: Simplify right side
    8,617.80x = 69,003,038.72
  5. Step 5: Solve for x
    x = 69,003,038.72/8,617.80
  6. Step 6: Final answer
    x = 8,007.04

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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.