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Finding the Fourth Proportional to 17,998.50, 27,002.08 and 5,686.50

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Solution

The fourth proportional to 17,998.50, 27,002.08 and 5,686.50 is: 8,531.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,998.50 : 27,002.08 = 5,686.50 : x
  2. Step 2: Convert to fraction form
    17,998.50/27,002.08 = 5,686.50/x
  3. Step 3: Cross multiply
    17,998.50x = 27,002.08 × 5,686.50
  4. Step 4: Simplify right side
    17,998.50x = 153,547,327.92
  5. Step 5: Solve for x
    x = 153,547,327.92/17,998.50
  6. Step 6: Final answer
    x = 8,531.12

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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.