Home / 15,113.70-22,670.55-8,115.30

Finding the Fourth Proportional to 15,113.70, 22,670.55 and 8,115.30

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Solution

The fourth proportional to 15,113.70, 22,670.55 and 8,115.30 is: 12,172.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,113.70 : 22,670.55 = 8,115.30 : x
  2. Step 2: Convert to fraction form
    15,113.70/22,670.55 = 8,115.30/x
  3. Step 3: Cross multiply
    15,113.70x = 22,670.55 × 8,115.30
  4. Step 4: Simplify right side
    15,113.70x = 183,978,314.42
  5. Step 5: Solve for x
    x = 183,978,314.42/15,113.70
  6. Step 6: Final answer
    x = 12,172.95

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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.