Home / 12,948,815.18-17,869,362.24-7,147,595.38

Finding the Fourth Proportional to 12,948,815.18, 17,869,362.24 and 7,147,595.38

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Solution

The fourth proportional to 12,948,815.18, 17,869,362.24 and 7,147,595.38 is: 9,863,680.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948,815.18 : 17,869,362.24 = 7,147,595.38 : x
  2. Step 2: Convert to fraction form
    12,948,815.18/17,869,362.24 = 7,147,595.38/x
  3. Step 3: Cross multiply
    12,948,815.18x = 17,869,362.24 × 7,147,595.38
  4. Step 4: Simplify right side
    12,948,815.18x = 127,722,970,990,170.44
  5. Step 5: Solve for x
    x = 127,722,970,990,170.44/12,948,815.18
  6. Step 6: Final answer
    x = 9,863,680.13

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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.