Home / 13,135.20-19,687.68-6,566.10

Finding the Fourth Proportional to 13,135.20, 19,687.68 and 6,566.10

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Solution

The fourth proportional to 13,135.20, 19,687.68 and 6,566.10 is: 9,841.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,135.20 : 19,687.68 = 6,566.10 : x
  2. Step 2: Convert to fraction form
    13,135.20/19,687.68 = 6,566.10/x
  3. Step 3: Cross multiply
    13,135.20x = 19,687.68 × 6,566.10
  4. Step 4: Simplify right side
    13,135.20x = 129,271,275.65
  5. Step 5: Solve for x
    x = 129,271,275.65/13,135.20
  6. Step 6: Final answer
    x = 9,841.59

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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.