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Finding the Fourth Proportional to 8,799.82, 12,143.94 and 4,821.10

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Solution

The fourth proportional to 8,799.82, 12,143.94 and 4,821.10 is: 6,653.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,799.82 : 12,143.94 = 4,821.10 : x
  2. Step 2: Convert to fraction form
    8,799.82/12,143.94 = 4,821.10/x
  3. Step 3: Cross multiply
    8,799.82x = 12,143.94 × 4,821.10
  4. Step 4: Simplify right side
    8,799.82x = 58,547,149.13
  5. Step 5: Solve for x
    x = 58,547,149.13/8,799.82
  6. Step 6: Final answer
    x = 6,653.22

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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.