Home / 13,521.33-18,658.10-7,552.87

Finding the Fourth Proportional to 13,521.33, 18,658.10 and 7,552.87

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Solution

The fourth proportional to 13,521.33, 18,658.10 and 7,552.87 is: 10,422.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,521.33 : 18,658.10 = 7,552.87 : x
  2. Step 2: Convert to fraction form
    13,521.33/18,658.10 = 7,552.87/x
  3. Step 3: Cross multiply
    13,521.33x = 18,658.10 × 7,552.87
  4. Step 4: Simplify right side
    13,521.33x = 140,922,185.97
  5. Step 5: Solve for x
    x = 140,922,185.97/13,521.33
  6. Step 6: Final answer
    x = 10,422.21

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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.