Home / 15,930.21-23,886.09-5,396.70

Finding the Fourth Proportional to 15,930.21, 23,886.09 and 5,396.70

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Solution

The fourth proportional to 15,930.21, 23,886.09 and 5,396.70 is: 8,091.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,930.21 : 23,886.09 = 5,396.70 : x
  2. Step 2: Convert to fraction form
    15,930.21/23,886.09 = 5,396.70/x
  3. Step 3: Cross multiply
    15,930.21x = 23,886.09 × 5,396.70
  4. Step 4: Simplify right side
    15,930.21x = 128,906,061.90
  5. Step 5: Solve for x
    x = 128,906,061.90/15,930.21
  6. Step 6: Final answer
    x = 8,091.92

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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.