Home / 10,409.71-15,614.55-2,618.52

Finding the Fourth Proportional to 10,409.71, 15,614.55 and 2,618.52

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Solution

The fourth proportional to 10,409.71, 15,614.55 and 2,618.52 is: 3,927.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,409.71 : 15,614.55 = 2,618.52 : x
  2. Step 2: Convert to fraction form
    10,409.71/15,614.55 = 2,618.52/x
  3. Step 3: Cross multiply
    10,409.71x = 15,614.55 × 2,618.52
  4. Step 4: Simplify right side
    10,409.71x = 40,887,011.47
  5. Step 5: Solve for x
    x = 40,887,011.47/10,409.71
  6. Step 6: Final answer
    x = 3,927.78

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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.