Home / 7,988.64-11,966.48-4,691.76

Finding the Fourth Proportional to 7,988.64, 11,966.48 and 4,691.76

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Solution

The fourth proportional to 7,988.64, 11,966.48 and 4,691.76 is: 7,027.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,988.64 : 11,966.48 = 4,691.76 : x
  2. Step 2: Convert to fraction form
    7,988.64/11,966.48 = 4,691.76/x
  3. Step 3: Cross multiply
    7,988.64x = 11,966.48 × 4,691.76
  4. Step 4: Simplify right side
    7,988.64x = 56,143,852.20
  5. Step 5: Solve for x
    x = 56,143,852.20/7,988.64
  6. Step 6: Final answer
    x = 7,027.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.