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Finding the Fourth Proportional to 7,680.52, 10,618.02 and 7,610.36

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Solution

The fourth proportional to 7,680.52, 10,618.02 and 7,610.36 is: 10,521.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680.52 : 10,618.02 = 7,610.36 : x
  2. Step 2: Convert to fraction form
    7,680.52/10,618.02 = 7,610.36/x
  3. Step 3: Cross multiply
    7,680.52x = 10,618.02 × 7,610.36
  4. Step 4: Simplify right side
    7,680.52x = 80,806,954.69
  5. Step 5: Solve for x
    x = 80,806,954.69/7,680.52
  6. Step 6: Final answer
    x = 10,521.03

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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.