Home / 12,439.48-18,672.66-5,048.92

Finding the Fourth Proportional to 12,439.48, 18,672.66 and 5,048.92

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Solution

The fourth proportional to 12,439.48, 18,672.66 and 5,048.92 is: 7,578.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,439.48 : 18,672.66 = 5,048.92 : x
  2. Step 2: Convert to fraction form
    12,439.48/18,672.66 = 5,048.92/x
  3. Step 3: Cross multiply
    12,439.48x = 18,672.66 × 5,048.92
  4. Step 4: Simplify right side
    12,439.48x = 94,276,766.53
  5. Step 5: Solve for x
    x = 94,276,766.53/12,439.48
  6. Step 6: Final answer
    x = 7,578.84

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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.