Home / 9,121.15-13,681.27-3,575.53

Finding the Fourth Proportional to 9,121.15, 13,681.27 and 3,575.53

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Solution

The fourth proportional to 9,121.15, 13,681.27 and 3,575.53 is: 5,363.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121.15 : 13,681.27 = 3,575.53 : x
  2. Step 2: Convert to fraction form
    9,121.15/13,681.27 = 3,575.53/x
  3. Step 3: Cross multiply
    9,121.15x = 13,681.27 × 3,575.53
  4. Step 4: Simplify right side
    9,121.15x = 48,917,791.32
  5. Step 5: Solve for x
    x = 48,917,791.32/9,121.15
  6. Step 6: Final answer
    x = 5,363.12

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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.