Home / 8,631.67-12,935.69-6,521.56

Finding the Fourth Proportional to 8,631.67, 12,935.69 and 6,521.56

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Solution

The fourth proportional to 8,631.67, 12,935.69 and 6,521.56 is: 9,773.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,631.67 : 12,935.69 = 6,521.56 : x
  2. Step 2: Convert to fraction form
    8,631.67/12,935.69 = 6,521.56/x
  3. Step 3: Cross multiply
    8,631.67x = 12,935.69 × 6,521.56
  4. Step 4: Simplify right side
    8,631.67x = 84,360,860.76
  5. Step 5: Solve for x
    x = 84,360,860.76/8,631.67
  6. Step 6: Final answer
    x = 9,773.41

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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.