Home / 15,431.14-23,147.28-7,932.69

Finding the Fourth Proportional to 15,431.14, 23,147.28 and 7,932.69

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Solution

The fourth proportional to 15,431.14, 23,147.28 and 7,932.69 is: 11,899.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,431.14 : 23,147.28 = 7,932.69 : x
  2. Step 2: Convert to fraction form
    15,431.14/23,147.28 = 7,932.69/x
  3. Step 3: Cross multiply
    15,431.14x = 23,147.28 × 7,932.69
  4. Step 4: Simplify right side
    15,431.14x = 183,620,196.58
  5. Step 5: Solve for x
    x = 183,620,196.58/15,431.14
  6. Step 6: Final answer
    x = 11,899.33

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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.