Home / 13,086.46-19,612.68-5,291.02

Finding the Fourth Proportional to 13,086.46, 19,612.68 and 5,291.02

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Solution

The fourth proportional to 13,086.46, 19,612.68 and 5,291.02 is: 7,929.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,086.46 : 19,612.68 = 5,291.02 : x
  2. Step 2: Convert to fraction form
    13,086.46/19,612.68 = 5,291.02/x
  3. Step 3: Cross multiply
    13,086.46x = 19,612.68 × 5,291.02
  4. Step 4: Simplify right side
    13,086.46x = 103,771,082.13
  5. Step 5: Solve for x
    x = 103,771,082.13/13,086.46
  6. Step 6: Final answer
    x = 7,929.65

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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.