Home / 13,090-19,631.04-4,327.24

Finding the Fourth Proportional to 13,090, 19,631.04 and 4,327.24

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Solution

The fourth proportional to 13,090, 19,631.04 and 4,327.24 is: 6,489.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,090 : 19,631.04 = 4,327.24 : x
  2. Step 2: Convert to fraction form
    13,090/19,631.04 = 4,327.24/x
  3. Step 3: Cross multiply
    13,090x = 19,631.04 × 4,327.24
  4. Step 4: Simplify right side
    13,090x = 84,948,221.53
  5. Step 5: Solve for x
    x = 84,948,221.53/13,090
  6. Step 6: Final answer
    x = 6,489.55

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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.