Home / 8,664.28-11,941.50-6,901.72

Finding the Fourth Proportional to 8,664.28, 11,941.50 and 6,901.72

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Solution

The fourth proportional to 8,664.28, 11,941.50 and 6,901.72 is: 9,512.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,664.28 : 11,941.50 = 6,901.72 : x
  2. Step 2: Convert to fraction form
    8,664.28/11,941.50 = 6,901.72/x
  3. Step 3: Cross multiply
    8,664.28x = 11,941.50 × 6,901.72
  4. Step 4: Simplify right side
    8,664.28x = 82,416,889.38
  5. Step 5: Solve for x
    x = 82,416,889.38/8,664.28
  6. Step 6: Final answer
    x = 9,512.26

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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.