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Finding the Fourth Proportional to 8,917.51, 12,294.49 and 7,671.94

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Solution

The fourth proportional to 8,917.51, 12,294.49 and 7,671.94 is: 10,577.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,917.51 : 12,294.49 = 7,671.94 : x
  2. Step 2: Convert to fraction form
    8,917.51/12,294.49 = 7,671.94/x
  3. Step 3: Cross multiply
    8,917.51x = 12,294.49 × 7,671.94
  4. Step 4: Simplify right side
    8,917.51x = 94,322,644.81
  5. Step 5: Solve for x
    x = 94,322,644.81/8,917.51
  6. Step 6: Final answer
    x = 10,577.24

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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.