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Finding the Fourth Proportional to 8,722.66, 12,024.57 and 6,623.14

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Solution

The fourth proportional to 8,722.66, 12,024.57 and 6,623.14 is: 9,130.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,722.66 : 12,024.57 = 6,623.14 : x
  2. Step 2: Convert to fraction form
    8,722.66/12,024.57 = 6,623.14/x
  3. Step 3: Cross multiply
    8,722.66x = 12,024.57 × 6,623.14
  4. Step 4: Simplify right side
    8,722.66x = 79,640,410.55
  5. Step 5: Solve for x
    x = 79,640,410.55/8,722.66
  6. Step 6: Final answer
    x = 9,130.29

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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.