Home / 15,028.25-20,737.14-8,312.96

Finding the Fourth Proportional to 15,028.25, 20,737.14 and 8,312.96

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Solution

The fourth proportional to 15,028.25, 20,737.14 and 8,312.96 is: 11,470.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,028.25 : 20,737.14 = 8,312.96 : x
  2. Step 2: Convert to fraction form
    15,028.25/20,737.14 = 8,312.96/x
  3. Step 3: Cross multiply
    15,028.25x = 20,737.14 × 8,312.96
  4. Step 4: Simplify right side
    15,028.25x = 172,386,911.65
  5. Step 5: Solve for x
    x = 172,386,911.65/15,028.25
  6. Step 6: Final answer
    x = 11,470.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.