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Finding the Fourth Proportional to 9,017.92, 13,436.10 and 8,514.88

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Solution

The fourth proportional to 9,017.92, 13,436.10 and 8,514.88 is: 12,686.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,017.92 : 13,436.10 = 8,514.88 : x
  2. Step 2: Convert to fraction form
    9,017.92/13,436.10 = 8,514.88/x
  3. Step 3: Cross multiply
    9,017.92x = 13,436.10 × 8,514.88
  4. Step 4: Simplify right side
    9,017.92x = 114,406,779.17
  5. Step 5: Solve for x
    x = 114,406,779.17/9,017.92
  6. Step 6: Final answer
    x = 12,686.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.