Home / 13,515.18-20,264.49-4,751.10

Finding the Fourth Proportional to 13,515.18, 20,264.49 and 4,751.10

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Solution

The fourth proportional to 13,515.18, 20,264.49 and 4,751.10 is: 7,123.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,515.18 : 20,264.49 = 4,751.10 : x
  2. Step 2: Convert to fraction form
    13,515.18/20,264.49 = 4,751.10/x
  3. Step 3: Cross multiply
    13,515.18x = 20,264.49 × 4,751.10
  4. Step 4: Simplify right side
    13,515.18x = 96,278,618.44
  5. Step 5: Solve for x
    x = 96,278,618.44/13,515.18
  6. Step 6: Final answer
    x = 7,123.74

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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.