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Finding the Fourth Proportional to 11,689.79, 17,537.07 and 4,294.32

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Solution

The fourth proportional to 11,689.79, 17,537.07 and 4,294.32 is: 6,442.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,689.79 : 17,537.07 = 4,294.32 : x
  2. Step 2: Convert to fraction form
    11,689.79/17,537.07 = 4,294.32/x
  3. Step 3: Cross multiply
    11,689.79x = 17,537.07 × 4,294.32
  4. Step 4: Simplify right side
    11,689.79x = 75,309,740.78
  5. Step 5: Solve for x
    x = 75,309,740.78/11,689.79
  6. Step 6: Final answer
    x = 6,442.35

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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.