Home / 13,444.75-20,167.13-6,403.42

Finding the Fourth Proportional to 13,444.75, 20,167.13 and 6,403.42

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Solution

The fourth proportional to 13,444.75, 20,167.13 and 6,403.42 is: 9,605.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,444.75 : 20,167.13 = 6,403.42 : x
  2. Step 2: Convert to fraction form
    13,444.75/20,167.13 = 6,403.42/x
  3. Step 3: Cross multiply
    13,444.75x = 20,167.13 × 6,403.42
  4. Step 4: Simplify right side
    13,444.75x = 129,138,603.58
  5. Step 5: Solve for x
    x = 129,138,603.58/13,444.75
  6. Step 6: Final answer
    x = 9,605.13

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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.