Home / 10,538.87-15,810.57-3,143.93

Finding the Fourth Proportional to 10,538.87, 15,810.57 and 3,143.93

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Solution

The fourth proportional to 10,538.87, 15,810.57 and 3,143.93 is: 4,716.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,538.87 : 15,810.57 = 3,143.93 : x
  2. Step 2: Convert to fraction form
    10,538.87/15,810.57 = 3,143.93/x
  3. Step 3: Cross multiply
    10,538.87x = 15,810.57 × 3,143.93
  4. Step 4: Simplify right side
    10,538.87x = 49,707,246.29
  5. Step 5: Solve for x
    x = 49,707,246.29/10,538.87
  6. Step 6: Final answer
    x = 4,716.57

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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.