Home / 15,040.95-22,555.21-5,679.38

Finding the Fourth Proportional to 15,040.95, 22,555.21 and 5,679.38

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Solution

The fourth proportional to 15,040.95, 22,555.21 and 5,679.38 is: 8,516.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,040.95 : 22,555.21 = 5,679.38 : x
  2. Step 2: Convert to fraction form
    15,040.95/22,555.21 = 5,679.38/x
  3. Step 3: Cross multiply
    15,040.95x = 22,555.21 × 5,679.38
  4. Step 4: Simplify right side
    15,040.95x = 128,099,608.57
  5. Step 5: Solve for x
    x = 128,099,608.57/15,040.95
  6. Step 6: Final answer
    x = 8,516.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.