Home / 18,642.66-25,727.48-10,686.39

Finding the Fourth Proportional to 18,642.66, 25,727.48 and 10,686.39

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Solution

The fourth proportional to 18,642.66, 25,727.48 and 10,686.39 is: 14,747.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,642.66 : 25,727.48 = 10,686.39 : x
  2. Step 2: Convert to fraction form
    18,642.66/25,727.48 = 10,686.39/x
  3. Step 3: Cross multiply
    18,642.66x = 25,727.48 × 10,686.39
  4. Step 4: Simplify right side
    18,642.66x = 274,933,702.93
  5. Step 5: Solve for x
    x = 274,933,702.93/18,642.66
  6. Step 6: Final answer
    x = 14,747.56

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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.