Home / 7,909.79-10,915.46-4,372.97

Finding the Fourth Proportional to 7,909.79, 10,915.46 and 4,372.97

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Solution

The fourth proportional to 7,909.79, 10,915.46 and 4,372.97 is: 6,034.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,909.79 : 10,915.46 = 4,372.97 : x
  2. Step 2: Convert to fraction form
    7,909.79/10,915.46 = 4,372.97/x
  3. Step 3: Cross multiply
    7,909.79x = 10,915.46 × 4,372.97
  4. Step 4: Simplify right side
    7,909.79x = 47,732,902.67
  5. Step 5: Solve for x
    x = 47,732,902.67/7,909.79
  6. Step 6: Final answer
    x = 6,034.66

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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.