Home / 11,340.38-15,661.68-10,103.52

Finding the Fourth Proportional to 11,340.38, 15,661.68 and 10,103.52

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Solution

The fourth proportional to 11,340.38, 15,661.68 and 10,103.52 is: 13,953.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,340.38 : 15,661.68 = 10,103.52 : x
  2. Step 2: Convert to fraction form
    11,340.38/15,661.68 = 10,103.52/x
  3. Step 3: Cross multiply
    11,340.38x = 15,661.68 × 10,103.52
  4. Step 4: Simplify right side
    11,340.38x = 158,238,097.11
  5. Step 5: Solve for x
    x = 158,238,097.11/11,340.38
  6. Step 6: Final answer
    x = 13,953.51

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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.