Home / 10,612.08-15,919.92-4,772.79

Finding the Fourth Proportional to 10,612.08, 15,919.92 and 4,772.79

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Solution

The fourth proportional to 10,612.08, 15,919.92 and 4,772.79 is: 7,159.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,612.08 : 15,919.92 = 4,772.79 : x
  2. Step 2: Convert to fraction form
    10,612.08/15,919.92 = 4,772.79/x
  3. Step 3: Cross multiply
    10,612.08x = 15,919.92 × 4,772.79
  4. Step 4: Simplify right side
    10,612.08x = 75,982,434.98
  5. Step 5: Solve for x
    x = 75,982,434.98/10,612.08
  6. Step 6: Final answer
    x = 7,159.99

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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.