Home / 10,390.75-14,339.17-5,675.03

Finding the Fourth Proportional to 10,390.75, 14,339.17 and 5,675.03

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Solution

The fourth proportional to 10,390.75, 14,339.17 and 5,675.03 is: 7,831.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,390.75 : 14,339.17 = 5,675.03 : x
  2. Step 2: Convert to fraction form
    10,390.75/14,339.17 = 5,675.03/x
  3. Step 3: Cross multiply
    10,390.75x = 14,339.17 × 5,675.03
  4. Step 4: Simplify right side
    10,390.75x = 81,375,262.87
  5. Step 5: Solve for x
    x = 81,375,262.87/10,390.75
  6. Step 6: Final answer
    x = 7,831.51

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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.