Home / 13,241.13-18,272.87-7,575.53

Finding the Fourth Proportional to 13,241.13, 18,272.87 and 7,575.53

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Solution

The fourth proportional to 13,241.13, 18,272.87 and 7,575.53 is: 10,454.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,241.13 : 18,272.87 = 7,575.53 : x
  2. Step 2: Convert to fraction form
    13,241.13/18,272.87 = 7,575.53/x
  3. Step 3: Cross multiply
    13,241.13x = 18,272.87 × 7,575.53
  4. Step 4: Simplify right side
    13,241.13x = 138,426,545.63
  5. Step 5: Solve for x
    x = 138,426,545.63/13,241.13
  6. Step 6: Final answer
    x = 10,454.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.