Home / 8,455.98-12,684.05-3,776.23

Finding the Fourth Proportional to 8,455.98, 12,684.05 and 3,776.23

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Solution

The fourth proportional to 8,455.98, 12,684.05 and 3,776.23 is: 5,664.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,455.98 : 12,684.05 = 3,776.23 : x
  2. Step 2: Convert to fraction form
    8,455.98/12,684.05 = 3,776.23/x
  3. Step 3: Cross multiply
    8,455.98x = 12,684.05 × 3,776.23
  4. Step 4: Simplify right side
    8,455.98x = 47,897,851.16
  5. Step 5: Solve for x
    x = 47,897,851.16/8,455.98
  6. Step 6: Final answer
    x = 5,664.38

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Half scale
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Double scale
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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.