Home / 10,390.14-14,338.62-5,674.73

Finding the Fourth Proportional to 10,390.14, 14,338.62 and 5,674.73

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Solution

The fourth proportional to 10,390.14, 14,338.62 and 5,674.73 is: 7,831.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,390.14 : 14,338.62 = 5,674.73 : x
  2. Step 2: Convert to fraction form
    10,390.14/14,338.62 = 5,674.73/x
  3. Step 3: Cross multiply
    10,390.14x = 14,338.62 × 5,674.73
  4. Step 4: Simplify right side
    10,390.14x = 81,367,725.38
  5. Step 5: Solve for x
    x = 81,367,725.38/10,390.14
  6. Step 6: Final answer
    x = 7,831.24

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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.