Home / 10,665.24-15,976.35-5,392.92

Finding the Fourth Proportional to 10,665.24, 15,976.35 and 5,392.92

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Solution

The fourth proportional to 10,665.24, 15,976.35 and 5,392.92 is: 8,078.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,665.24 : 15,976.35 = 5,392.92 : x
  2. Step 2: Convert to fraction form
    10,665.24/15,976.35 = 5,392.92/x
  3. Step 3: Cross multiply
    10,665.24x = 15,976.35 × 5,392.92
  4. Step 4: Simplify right side
    10,665.24x = 86,159,177.44
  5. Step 5: Solve for x
    x = 86,159,177.44/10,665.24
  6. Step 6: Final answer
    x = 8,078.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.