Home / 8,923.91-12,313.22-5,387.31

Finding the Fourth Proportional to 8,923.91, 12,313.22 and 5,387.31

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Solution

The fourth proportional to 8,923.91, 12,313.22 and 5,387.31 is: 7,433.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,923.91 : 12,313.22 = 5,387.31 : x
  2. Step 2: Convert to fraction form
    8,923.91/12,313.22 = 5,387.31/x
  3. Step 3: Cross multiply
    8,923.91x = 12,313.22 × 5,387.31
  4. Step 4: Simplify right side
    8,923.91x = 66,335,106.30
  5. Step 5: Solve for x
    x = 66,335,106.30/8,923.91
  6. Step 6: Final answer
    x = 7,433.42

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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.