Home / 15,428.22-23,139.39-7,522.80

Finding the Fourth Proportional to 15,428.22, 23,139.39 and 7,522.80

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Solution

The fourth proportional to 15,428.22, 23,139.39 and 7,522.80 is: 11,282.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,428.22 : 23,139.39 = 7,522.80 : x
  2. Step 2: Convert to fraction form
    15,428.22/23,139.39 = 7,522.80/x
  3. Step 3: Cross multiply
    15,428.22x = 23,139.39 × 7,522.80
  4. Step 4: Simplify right side
    15,428.22x = 174,073,003.09
  5. Step 5: Solve for x
    x = 174,073,003.09/15,428.22
  6. Step 6: Final answer
    x = 11,282.77

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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.