Home / 10,479.45-15,727.08-5,550.20

Finding the Fourth Proportional to 10,479.45, 15,727.08 and 5,550.20

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Solution

The fourth proportional to 10,479.45, 15,727.08 and 5,550.20 is: 8,329.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,479.45 : 15,727.08 = 5,550.20 : x
  2. Step 2: Convert to fraction form
    10,479.45/15,727.08 = 5,550.20/x
  3. Step 3: Cross multiply
    10,479.45x = 15,727.08 × 5,550.20
  4. Step 4: Simplify right side
    10,479.45x = 87,288,439.42
  5. Step 5: Solve for x
    x = 87,288,439.42/10,479.45
  6. Step 6: Final answer
    x = 8,329.49

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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.