Home / 18,558.90-25,610.17-11,005.95

Finding the Fourth Proportional to 18,558.90, 25,610.17 and 11,005.95

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Solution

The fourth proportional to 18,558.90, 25,610.17 and 11,005.95 is: 15,187.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,558.90 : 25,610.17 = 11,005.95 : x
  2. Step 2: Convert to fraction form
    18,558.90/25,610.17 = 11,005.95/x
  3. Step 3: Cross multiply
    18,558.90x = 25,610.17 × 11,005.95
  4. Step 4: Simplify right side
    18,558.90x = 281,864,250.51
  5. Step 5: Solve for x
    x = 281,864,250.51/18,558.90
  6. Step 6: Final answer
    x = 15,187.55

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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.