Home / 10,489.05-15,733.79-3,913.92

Finding the Fourth Proportional to 10,489.05, 15,733.79 and 3,913.92

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Solution

The fourth proportional to 10,489.05, 15,733.79 and 3,913.92 is: 5,870.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,489.05 : 15,733.79 = 3,913.92 : x
  2. Step 2: Convert to fraction form
    10,489.05/15,733.79 = 3,913.92/x
  3. Step 3: Cross multiply
    10,489.05x = 15,733.79 × 3,913.92
  4. Step 4: Simplify right side
    10,489.05x = 61,580,834.79
  5. Step 5: Solve for x
    x = 61,580,834.79/10,489.05
  6. Step 6: Final answer
    x = 5,870.96

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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.