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Finding the Fourth Proportional to 8,736.12, 13,024.72 and 7,751.16

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Solution

The fourth proportional to 8,736.12, 13,024.72 and 7,751.16 is: 11,556.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,736.12 : 13,024.72 = 7,751.16 : x
  2. Step 2: Convert to fraction form
    8,736.12/13,024.72 = 7,751.16/x
  3. Step 3: Cross multiply
    8,736.12x = 13,024.72 × 7,751.16
  4. Step 4: Simplify right side
    8,736.12x = 100,956,688.68
  5. Step 5: Solve for x
    x = 100,956,688.68/8,736.12
  6. Step 6: Final answer
    x = 11,556.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.