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Finding the Fourth Proportional to 8,398.74, 12,598.11 and 3,776.34

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Solution

The fourth proportional to 8,398.74, 12,598.11 and 3,776.34 is: 5,664.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,398.74 : 12,598.11 = 3,776.34 : x
  2. Step 2: Convert to fraction form
    8,398.74/12,598.11 = 3,776.34/x
  3. Step 3: Cross multiply
    8,398.74x = 12,598.11 × 3,776.34
  4. Step 4: Simplify right side
    8,398.74x = 47,574,746.72
  5. Step 5: Solve for x
    x = 47,574,746.72/8,398.74
  6. Step 6: Final answer
    x = 5,664.51

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Similar ratio
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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.