Home / 18,327.42-25,315.56-13,557.11

Finding the Fourth Proportional to 18,327.42, 25,315.56 and 13,557.11

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Solution

The fourth proportional to 18,327.42, 25,315.56 and 13,557.11 is: 18,726.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,327.42 : 25,315.56 = 13,557.11 : x
  2. Step 2: Convert to fraction form
    18,327.42/25,315.56 = 13,557.11/x
  3. Step 3: Cross multiply
    18,327.42x = 25,315.56 × 13,557.11
  4. Step 4: Simplify right side
    18,327.42x = 343,205,705.05
  5. Step 5: Solve for x
    x = 343,205,705.05/18,327.42
  6. Step 6: Final answer
    x = 18,726.35

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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.