Home / 13,550.61-18,658.31-11,862.57

Finding the Fourth Proportional to 13,550.61, 18,658.31 and 11,862.57

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Solution

The fourth proportional to 13,550.61, 18,658.31 and 11,862.57 is: 16,333.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,550.61 : 18,658.31 = 11,862.57 : x
  2. Step 2: Convert to fraction form
    13,550.61/18,658.31 = 11,862.57/x
  3. Step 3: Cross multiply
    13,550.61x = 18,658.31 × 11,862.57
  4. Step 4: Simplify right side
    13,550.61x = 221,335,449.14
  5. Step 5: Solve for x
    x = 221,335,449.14/13,550.61
  6. Step 6: Final answer
    x = 16,333.98

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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.