Home / 12,479.85-18,713.53-4,156.96

Finding the Fourth Proportional to 12,479.85, 18,713.53 and 4,156.96

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Solution

The fourth proportional to 12,479.85, 18,713.53 and 4,156.96 is: 6,233.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,479.85 : 18,713.53 = 4,156.96 : x
  2. Step 2: Convert to fraction form
    12,479.85/18,713.53 = 4,156.96/x
  3. Step 3: Cross multiply
    12,479.85x = 18,713.53 × 4,156.96
  4. Step 4: Simplify right side
    12,479.85x = 77,791,395.67
  5. Step 5: Solve for x
    x = 77,791,395.67/12,479.85
  6. Step 6: Final answer
    x = 6,233.36

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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.