Home / 10,345.68-15,518.50-3,769.18

Finding the Fourth Proportional to 10,345.68, 15,518.50 and 3,769.18

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Solution

The fourth proportional to 10,345.68, 15,518.50 and 3,769.18 is: 5,653.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,345.68 : 15,518.50 = 3,769.18 : x
  2. Step 2: Convert to fraction form
    10,345.68/15,518.50 = 3,769.18/x
  3. Step 3: Cross multiply
    10,345.68x = 15,518.50 × 3,769.18
  4. Step 4: Simplify right side
    10,345.68x = 58,491,971.61
  5. Step 5: Solve for x
    x = 58,491,971.61/10,345.68
  6. Step 6: Final answer
    x = 5,653.76

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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.