Home / 7,986.54-11,031.44-6,731.76

Finding the Fourth Proportional to 7,986.54, 11,031.44 and 6,731.76

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Solution

The fourth proportional to 7,986.54, 11,031.44 and 6,731.76 is: 9,298.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.54 : 11,031.44 = 6,731.76 : x
  2. Step 2: Convert to fraction form
    7,986.54/11,031.44 = 6,731.76/x
  3. Step 3: Cross multiply
    7,986.54x = 11,031.44 × 6,731.76
  4. Step 4: Simplify right side
    7,986.54x = 74,261,006.53
  5. Step 5: Solve for x
    x = 74,261,006.53/7,986.54
  6. Step 6: Final answer
    x = 9,298.27

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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.