Home / 10,915.12-15,062.92-6,200.96

Finding the Fourth Proportional to 10,915.12, 15,062.92 and 6,200.96

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Solution

The fourth proportional to 10,915.12, 15,062.92 and 6,200.96 is: 8,557.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,915.12 : 15,062.92 = 6,200.96 : x
  2. Step 2: Convert to fraction form
    10,915.12/15,062.92 = 6,200.96/x
  3. Step 3: Cross multiply
    10,915.12x = 15,062.92 × 6,200.96
  4. Step 4: Simplify right side
    10,915.12x = 93,404,564.40
  5. Step 5: Solve for x
    x = 93,404,564.40/10,915.12
  6. Step 6: Final answer
    x = 8,557.36

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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.