Home / 15,145.60-22,719.72-5,284.72

Finding the Fourth Proportional to 15,145.60, 22,719.72 and 5,284.72

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Solution

The fourth proportional to 15,145.60, 22,719.72 and 5,284.72 is: 7,927.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,145.60 : 22,719.72 = 5,284.72 : x
  2. Step 2: Convert to fraction form
    15,145.60/22,719.72 = 5,284.72/x
  3. Step 3: Cross multiply
    15,145.60x = 22,719.72 × 5,284.72
  4. Step 4: Simplify right side
    15,145.60x = 120,067,358.68
  5. Step 5: Solve for x
    x = 120,067,358.68/15,145.60
  6. Step 6: Final answer
    x = 7,927.54

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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.