Home / 9,043.74-12,479.85-5,064.78

Finding the Fourth Proportional to 9,043.74, 12,479.85 and 5,064.78

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Solution

The fourth proportional to 9,043.74, 12,479.85 and 5,064.78 is: 6,989.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,043.74 : 12,479.85 = 5,064.78 : x
  2. Step 2: Convert to fraction form
    9,043.74/12,479.85 = 5,064.78/x
  3. Step 3: Cross multiply
    9,043.74x = 12,479.85 × 5,064.78
  4. Step 4: Simplify right side
    9,043.74x = 63,207,694.68
  5. Step 5: Solve for x
    x = 63,207,694.68/9,043.74
  6. Step 6: Final answer
    x = 6,989.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.