Home / 12,479.59-18,717.24-4,158.66

Finding the Fourth Proportional to 12,479.59, 18,717.24 and 4,158.66

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Solution

The fourth proportional to 12,479.59, 18,717.24 and 4,158.66 is: 6,237.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,479.59 : 18,717.24 = 4,158.66 : x
  2. Step 2: Convert to fraction form
    12,479.59/18,717.24 = 4,158.66/x
  3. Step 3: Cross multiply
    12,479.59x = 18,717.24 × 4,158.66
  4. Step 4: Simplify right side
    12,479.59x = 77,838,637.30
  5. Step 5: Solve for x
    x = 77,838,637.30/12,479.59
  6. Step 6: Final answer
    x = 6,237.28

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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.