Home / 15,115.68-22,680.96-6,801.57

Finding the Fourth Proportional to 15,115.68, 22,680.96 and 6,801.57

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Solution

The fourth proportional to 15,115.68, 22,680.96 and 6,801.57 is: 10,205.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,115.68 : 22,680.96 = 6,801.57 : x
  2. Step 2: Convert to fraction form
    15,115.68/22,680.96 = 6,801.57/x
  3. Step 3: Cross multiply
    15,115.68x = 22,680.96 × 6,801.57
  4. Step 4: Simplify right side
    15,115.68x = 154,266,137.11
  5. Step 5: Solve for x
    x = 154,266,137.11/15,115.68
  6. Step 6: Final answer
    x = 10,205.70

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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.