Home / 15,178.92-22,778.61-5,318.28

Finding the Fourth Proportional to 15,178.92, 22,778.61 and 5,318.28

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Solution

The fourth proportional to 15,178.92, 22,778.61 and 5,318.28 is: 7,981.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,178.92 : 22,778.61 = 5,318.28 : x
  2. Step 2: Convert to fraction form
    15,178.92/22,778.61 = 5,318.28/x
  3. Step 3: Cross multiply
    15,178.92x = 22,778.61 × 5,318.28
  4. Step 4: Simplify right side
    15,178.92x = 121,143,025.99
  5. Step 5: Solve for x
    x = 121,143,025.99/15,178.92
  6. Step 6: Final answer
    x = 7,981.00

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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.