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Finding the Fourth Proportional to 8,652.66, 11,949.44 and 7,455.21

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Solution

The fourth proportional to 8,652.66, 11,949.44 and 7,455.21 is: 10,295.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,652.66 : 11,949.44 = 7,455.21 : x
  2. Step 2: Convert to fraction form
    8,652.66/11,949.44 = 7,455.21/x
  3. Step 3: Cross multiply
    8,652.66x = 11,949.44 × 7,455.21
  4. Step 4: Simplify right side
    8,652.66x = 89,085,547.31
  5. Step 5: Solve for x
    x = 89,085,547.31/8,652.66
  6. Step 6: Final answer
    x = 10,295.74

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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.