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Finding the Fourth Proportional to 8,812.66, 13,201.36 and 5,300.72

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Solution

The fourth proportional to 8,812.66, 13,201.36 and 5,300.72 is: 7,940.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,812.66 : 13,201.36 = 5,300.72 : x
  2. Step 2: Convert to fraction form
    8,812.66/13,201.36 = 5,300.72/x
  3. Step 3: Cross multiply
    8,812.66x = 13,201.36 × 5,300.72
  4. Step 4: Simplify right side
    8,812.66x = 69,976,752.61
  5. Step 5: Solve for x
    x = 69,976,752.61/8,812.66
  6. Step 6: Final answer
    x = 7,940.48

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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.