Home / 10,923.28-15,063.72-7,145.26

Finding the Fourth Proportional to 10,923.28, 15,063.72 and 7,145.26

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Solution

The fourth proportional to 10,923.28, 15,063.72 and 7,145.26 is: 9,853.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,923.28 : 15,063.72 = 7,145.26 : x
  2. Step 2: Convert to fraction form
    10,923.28/15,063.72 = 7,145.26/x
  3. Step 3: Cross multiply
    10,923.28x = 15,063.72 × 7,145.26
  4. Step 4: Simplify right side
    10,923.28x = 107,634,195.97
  5. Step 5: Solve for x
    x = 107,634,195.97/10,923.28
  6. Step 6: Final answer
    x = 9,853.65

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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.