Home / 8,924.20-12,315.50-4,945.36

Finding the Fourth Proportional to 8,924.20, 12,315.50 and 4,945.36

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Solution

The fourth proportional to 8,924.20, 12,315.50 and 4,945.36 is: 6,824.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,924.20 : 12,315.50 = 4,945.36 : x
  2. Step 2: Convert to fraction form
    8,924.20/12,315.50 = 4,945.36/x
  3. Step 3: Cross multiply
    8,924.20x = 12,315.50 × 4,945.36
  4. Step 4: Simplify right side
    8,924.20x = 60,904,581.08
  5. Step 5: Solve for x
    x = 60,904,581.08/8,924.20
  6. Step 6: Final answer
    x = 6,824.65

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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.