Home / 12,079.61-18,116.13-3,312.44

Finding the Fourth Proportional to 12,079.61, 18,116.13 and 3,312.44

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Solution

The fourth proportional to 12,079.61, 18,116.13 and 3,312.44 is: 4,967.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,079.61 : 18,116.13 = 3,312.44 : x
  2. Step 2: Convert to fraction form
    12,079.61/18,116.13 = 3,312.44/x
  3. Step 3: Cross multiply
    12,079.61x = 18,116.13 × 3,312.44
  4. Step 4: Simplify right side
    12,079.61x = 60,008,593.66
  5. Step 5: Solve for x
    x = 60,008,593.66/12,079.61
  6. Step 6: Final answer
    x = 4,967.76

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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.