Home / 10,913.44-15,059.76-6,721.76

Finding the Fourth Proportional to 10,913.44, 15,059.76 and 6,721.76

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Solution

The fourth proportional to 10,913.44, 15,059.76 and 6,721.76 is: 9,275.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,913.44 : 15,059.76 = 6,721.76 : x
  2. Step 2: Convert to fraction form
    10,913.44/15,059.76 = 6,721.76/x
  3. Step 3: Cross multiply
    10,913.44x = 15,059.76 × 6,721.76
  4. Step 4: Simplify right side
    10,913.44x = 101,228,092.38
  5. Step 5: Solve for x
    x = 101,228,092.38/10,913.44
  6. Step 6: Final answer
    x = 9,275.54

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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.