Home / 11,438.70-17,170.32-10,130.55

Finding the Fourth Proportional to 11,438.70, 17,170.32 and 10,130.55

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Solution

The fourth proportional to 11,438.70, 17,170.32 and 10,130.55 is: 15,206.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,438.70 : 17,170.32 = 10,130.55 : x
  2. Step 2: Convert to fraction form
    11,438.70/17,170.32 = 10,130.55/x
  3. Step 3: Cross multiply
    11,438.70x = 17,170.32 × 10,130.55
  4. Step 4: Simplify right side
    11,438.70x = 173,944,785.28
  5. Step 5: Solve for x
    x = 173,944,785.28/11,438.70
  6. Step 6: Final answer
    x = 15,206.69

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1.5x scale

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.