Home / 6,915.03-9,542.91-3,930.76

Finding the Fourth Proportional to 6,915.03, 9,542.91 and 3,930.76

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Solution

The fourth proportional to 6,915.03, 9,542.91 and 3,930.76 is: 5,424.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,915.03 : 9,542.91 = 3,930.76 : x
  2. Step 2: Convert to fraction form
    6,915.03/9,542.91 = 3,930.76/x
  3. Step 3: Cross multiply
    6,915.03x = 9,542.91 × 3,930.76
  4. Step 4: Simplify right side
    6,915.03x = 37,510,888.91
  5. Step 5: Solve for x
    x = 37,510,888.91/6,915.03
  6. Step 6: Final answer
    x = 5,424.54

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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.