Home / 13,387.14-20,064.51-9,663.57

Finding the Fourth Proportional to 13,387.14, 20,064.51 and 9,663.57

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Solution

The fourth proportional to 13,387.14, 20,064.51 and 9,663.57 is: 14,483.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,387.14 : 20,064.51 = 9,663.57 : x
  2. Step 2: Convert to fraction form
    13,387.14/20,064.51 = 9,663.57/x
  3. Step 3: Cross multiply
    13,387.14x = 20,064.51 × 9,663.57
  4. Step 4: Simplify right side
    13,387.14x = 193,894,796.90
  5. Step 5: Solve for x
    x = 193,894,796.90/13,387.14
  6. Step 6: Final answer
    x = 14,483.66

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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.