Home / 18,712.41-25,822.48-11,154.85

Finding the Fourth Proportional to 18,712.41, 25,822.48 and 11,154.85

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Solution

The fourth proportional to 18,712.41, 25,822.48 and 11,154.85 is: 15,393.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,712.41 : 25,822.48 = 11,154.85 : x
  2. Step 2: Convert to fraction form
    18,712.41/25,822.48 = 11,154.85/x
  3. Step 3: Cross multiply
    18,712.41x = 25,822.48 × 11,154.85
  4. Step 4: Simplify right side
    18,712.41x = 288,045,798.58
  5. Step 5: Solve for x
    x = 288,045,798.58/18,712.41
  6. Step 6: Final answer
    x = 15,393.30

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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.