Home / 8,939.44-12,332.28-5,580.08

Finding the Fourth Proportional to 8,939.44, 12,332.28 and 5,580.08

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Solution

The fourth proportional to 8,939.44, 12,332.28 and 5,580.08 is: 7,697.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,939.44 : 12,332.28 = 5,580.08 : x
  2. Step 2: Convert to fraction form
    8,939.44/12,332.28 = 5,580.08/x
  3. Step 3: Cross multiply
    8,939.44x = 12,332.28 × 5,580.08
  4. Step 4: Simplify right side
    8,939.44x = 68,815,108.98
  5. Step 5: Solve for x
    x = 68,815,108.98/8,939.44
  6. Step 6: Final answer
    x = 7,697.92

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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.