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Finding the Fourth Proportional to 8,475.18, 12,717.09 and 7,256.94

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Solution

The fourth proportional to 8,475.18, 12,717.09 and 7,256.94 is: 10,889.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,475.18 : 12,717.09 = 7,256.94 : x
  2. Step 2: Convert to fraction form
    8,475.18/12,717.09 = 7,256.94/x
  3. Step 3: Cross multiply
    8,475.18x = 12,717.09 × 7,256.94
  4. Step 4: Simplify right side
    8,475.18x = 92,287,159.10
  5. Step 5: Solve for x
    x = 92,287,159.10/8,475.18
  6. Step 6: Final answer
    x = 10,889.11

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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.