Home / 18,860.44-28,294.30-7,172.76

Finding the Fourth Proportional to 18,860.44, 28,294.30 and 7,172.76

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Solution

The fourth proportional to 18,860.44, 28,294.30 and 7,172.76 is: 10,760.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,860.44 : 28,294.30 = 7,172.76 : x
  2. Step 2: Convert to fraction form
    18,860.44/28,294.30 = 7,172.76/x
  3. Step 3: Cross multiply
    18,860.44x = 28,294.30 × 7,172.76
  4. Step 4: Simplify right side
    18,860.44x = 202,948,223.27
  5. Step 5: Solve for x
    x = 202,948,223.27/18,860.44
  6. Step 6: Final answer
    x = 10,760.52

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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.