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Finding the Fourth Proportional to 8,398.80, 12,595.95 and 2,553.84

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Solution

The fourth proportional to 8,398.80, 12,595.95 and 2,553.84 is: 3,830.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,398.80 : 12,595.95 = 2,553.84 : x
  2. Step 2: Convert to fraction form
    8,398.80/12,595.95 = 2,553.84/x
  3. Step 3: Cross multiply
    8,398.80x = 12,595.95 × 2,553.84
  4. Step 4: Simplify right side
    8,398.80x = 32,168,040.95
  5. Step 5: Solve for x
    x = 32,168,040.95/8,398.80
  6. Step 6: Final answer
    x = 3,830.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.