Home / 12,079.95-18,119.11-3,314.13

Finding the Fourth Proportional to 12,079.95, 18,119.11 and 3,314.13

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Solution

The fourth proportional to 12,079.95, 18,119.11 and 3,314.13 is: 4,970.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,079.95 : 18,119.11 = 3,314.13 : x
  2. Step 2: Convert to fraction form
    12,079.95/18,119.11 = 3,314.13/x
  3. Step 3: Cross multiply
    12,079.95x = 18,119.11 × 3,314.13
  4. Step 4: Simplify right side
    12,079.95x = 60,049,086.02
  5. Step 5: Solve for x
    x = 60,049,086.02/12,079.95
  6. Step 6: Final answer
    x = 4,970.97

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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.