Home / 10,923.92-15,071.40-8,542.48

Finding the Fourth Proportional to 10,923.92, 15,071.40 and 8,542.48

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Solution

The fourth proportional to 10,923.92, 15,071.40 and 8,542.48 is: 11,785.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,923.92 : 15,071.40 = 8,542.48 : x
  2. Step 2: Convert to fraction form
    10,923.92/15,071.40 = 8,542.48/x
  3. Step 3: Cross multiply
    10,923.92x = 15,071.40 × 8,542.48
  4. Step 4: Simplify right side
    10,923.92x = 128,747,133.07
  5. Step 5: Solve for x
    x = 128,747,133.07/10,923.92
  6. Step 6: Final answer
    x = 11,785.80

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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.