Home / 7,915.55-11,870.09-2,982.52

Finding the Fourth Proportional to 7,915.55, 11,870.09 and 2,982.52

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Solution

The fourth proportional to 7,915.55, 11,870.09 and 2,982.52 is: 4,472.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.55 : 11,870.09 = 2,982.52 : x
  2. Step 2: Convert to fraction form
    7,915.55/11,870.09 = 2,982.52/x
  3. Step 3: Cross multiply
    7,915.55x = 11,870.09 × 2,982.52
  4. Step 4: Simplify right side
    7,915.55x = 35,402,706.56
  5. Step 5: Solve for x
    x = 35,402,706.56/7,915.55
  6. Step 6: Final answer
    x = 4,472.55

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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.