Home / 11,418.33-15,742.95-8,732.84

Finding the Fourth Proportional to 11,418.33, 15,742.95 and 8,732.84

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Solution

The fourth proportional to 11,418.33, 15,742.95 and 8,732.84 is: 12,040.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,418.33 : 15,742.95 = 8,732.84 : x
  2. Step 2: Convert to fraction form
    11,418.33/15,742.95 = 8,732.84/x
  3. Step 3: Cross multiply
    11,418.33x = 15,742.95 × 8,732.84
  4. Step 4: Simplify right side
    11,418.33x = 137,480,660.17
  5. Step 5: Solve for x
    x = 137,480,660.17/11,418.33
  6. Step 6: Final answer
    x = 12,040.35

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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.