Home / 12,482.85-18,719.13-5,082.30

Finding the Fourth Proportional to 12,482.85, 18,719.13 and 5,082.30

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Solution

The fourth proportional to 12,482.85, 18,719.13 and 5,082.30 is: 7,621.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482.85 : 18,719.13 = 5,082.30 : x
  2. Step 2: Convert to fraction form
    12,482.85/18,719.13 = 5,082.30/x
  3. Step 3: Cross multiply
    12,482.85x = 18,719.13 × 5,082.30
  4. Step 4: Simplify right side
    12,482.85x = 95,136,234.40
  5. Step 5: Solve for x
    x = 95,136,234.40/12,482.85
  6. Step 6: Final answer
    x = 7,621.36

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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.