Home / 10,935.76-15,103.94-7,964.88

Finding the Fourth Proportional to 10,935.76, 15,103.94 and 7,964.88

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Solution

The fourth proportional to 10,935.76, 15,103.94 and 7,964.88 is: 11,000.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,935.76 : 15,103.94 = 7,964.88 : x
  2. Step 2: Convert to fraction form
    10,935.76/15,103.94 = 7,964.88/x
  3. Step 3: Cross multiply
    10,935.76x = 15,103.94 × 7,964.88
  4. Step 4: Simplify right side
    10,935.76x = 120,301,069.63
  5. Step 5: Solve for x
    x = 120,301,069.63/10,935.76
  6. Step 6: Final answer
    x = 11,000.70

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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.