Home / 10,950.45-15,103.29-9,440.61

Finding the Fourth Proportional to 10,950.45, 15,103.29 and 9,440.61

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Solution

The fourth proportional to 10,950.45, 15,103.29 and 9,440.61 is: 13,020.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,950.45 : 15,103.29 = 9,440.61 : x
  2. Step 2: Convert to fraction form
    10,950.45/15,103.29 = 9,440.61/x
  3. Step 3: Cross multiply
    10,950.45x = 15,103.29 × 9,440.61
  4. Step 4: Simplify right side
    10,950.45x = 142,584,270.61
  5. Step 5: Solve for x
    x = 142,584,270.61/10,950.45
  6. Step 6: Final answer
    x = 13,020.86

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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.