Home / 15,342.68-21,183.18-10,314.38

Finding the Fourth Proportional to 15,342.68, 21,183.18 and 10,314.38

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Solution

The fourth proportional to 15,342.68, 21,183.18 and 10,314.38 is: 14,240.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,342.68 : 21,183.18 = 10,314.38 : x
  2. Step 2: Convert to fraction form
    15,342.68/21,183.18 = 10,314.38/x
  3. Step 3: Cross multiply
    15,342.68x = 21,183.18 × 10,314.38
  4. Step 4: Simplify right side
    15,342.68x = 218,491,368.13
  5. Step 5: Solve for x
    x = 218,491,368.13/15,342.68
  6. Step 6: Final answer
    x = 14,240.76

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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.