Home / 12,722,920.18-17,563,728.09-7,832,334.38

Finding the Fourth Proportional to 12,722,920.18, 17,563,728.09 and 7,832,334.38

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Solution

The fourth proportional to 12,722,920.18, 17,563,728.09 and 7,832,334.38 is: 10,812,375.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,722,920.18 : 17,563,728.09 = 7,832,334.38 : x
  2. Step 2: Convert to fraction form
    12,722,920.18/17,563,728.09 = 7,832,334.38/x
  3. Step 3: Cross multiply
    12,722,920.18x = 17,563,728.09 × 7,832,334.38
  4. Step 4: Simplify right side
    12,722,920.18x = 137,564,991,360,278.73
  5. Step 5: Solve for x
    x = 137,564,991,360,278.73/12,722,920.18
  6. Step 6: Final answer
    x = 10,812,375.57

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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.