Home / 15,178.08-22,771.56-5,318.16

Finding the Fourth Proportional to 15,178.08, 22,771.56 and 5,318.16

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Solution

The fourth proportional to 15,178.08, 22,771.56 and 5,318.16 is: 7,978.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,178.08 : 22,771.56 = 5,318.16 : x
  2. Step 2: Convert to fraction form
    15,178.08/22,771.56 = 5,318.16/x
  3. Step 3: Cross multiply
    15,178.08x = 22,771.56 × 5,318.16
  4. Step 4: Simplify right side
    15,178.08x = 121,102,799.53
  5. Step 5: Solve for x
    x = 121,102,799.53/15,178.08
  6. Step 6: Final answer
    x = 7,978.80

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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.