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Finding the Fourth Proportional to 8,779.13, 13,168.69 and 2,623.13

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Solution

The fourth proportional to 8,779.13, 13,168.69 and 2,623.13 is: 3,934.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,779.13 : 13,168.69 = 2,623.13 : x
  2. Step 2: Convert to fraction form
    8,779.13/13,168.69 = 2,623.13/x
  3. Step 3: Cross multiply
    8,779.13x = 13,168.69 × 2,623.13
  4. Step 4: Simplify right side
    8,779.13x = 34,543,113.40
  5. Step 5: Solve for x
    x = 34,543,113.40/8,779.13
  6. Step 6: Final answer
    x = 3,934.69

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Similar ratio
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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.