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Finding the Fourth Proportional to 9,350.64, 12,888.72 and 8,825.76

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Solution

The fourth proportional to 9,350.64, 12,888.72 and 8,825.76 is: 12,165.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,350.64 : 12,888.72 = 8,825.76 : x
  2. Step 2: Convert to fraction form
    9,350.64/12,888.72 = 8,825.76/x
  3. Step 3: Cross multiply
    9,350.64x = 12,888.72 × 8,825.76
  4. Step 4: Simplify right side
    9,350.64x = 113,752,749.43
  5. Step 5: Solve for x
    x = 113,752,749.43/9,350.64
  6. Step 6: Final answer
    x = 12,165.24

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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.