Home / 18,853.80-25,996.74-13,531.56

Finding the Fourth Proportional to 18,853.80, 25,996.74 and 13,531.56

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Solution

The fourth proportional to 18,853.80, 25,996.74 and 13,531.56 is: 18,658.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,853.80 : 25,996.74 = 13,531.56 : x
  2. Step 2: Convert to fraction form
    18,853.80/25,996.74 = 13,531.56/x
  3. Step 3: Cross multiply
    18,853.80x = 25,996.74 × 13,531.56
  4. Step 4: Simplify right side
    18,853.80x = 351,776,447.11
  5. Step 5: Solve for x
    x = 351,776,447.11/18,853.80
  6. Step 6: Final answer
    x = 18,658.12

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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.