Home / 12,476.79-18,717.33-4,158.90

Finding the Fourth Proportional to 12,476.79, 18,717.33 and 4,158.90

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Solution

The fourth proportional to 12,476.79, 18,717.33 and 4,158.90 is: 6,239.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,476.79 : 18,717.33 = 4,158.90 : x
  2. Step 2: Convert to fraction form
    12,476.79/18,717.33 = 4,158.90/x
  3. Step 3: Cross multiply
    12,476.79x = 18,717.33 × 4,158.90
  4. Step 4: Simplify right side
    12,476.79x = 77,843,503.74
  5. Step 5: Solve for x
    x = 77,843,503.74/12,476.79
  6. Step 6: Final answer
    x = 6,239.06

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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.