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Finding the Fourth Proportional to 8,697.13, 13,045.69 and 4,080.13

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Solution

The fourth proportional to 8,697.13, 13,045.69 and 4,080.13 is: 6,120.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,697.13 : 13,045.69 = 4,080.13 : x
  2. Step 2: Convert to fraction form
    8,697.13/13,045.69 = 4,080.13/x
  3. Step 3: Cross multiply
    8,697.13x = 13,045.69 × 4,080.13
  4. Step 4: Simplify right side
    8,697.13x = 53,228,045.91
  5. Step 5: Solve for x
    x = 53,228,045.91/8,697.13
  6. Step 6: Final answer
    x = 6,120.19

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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.