Home / 12,116.10-18,175.35-4,217.40

Finding the Fourth Proportional to 12,116.10, 18,175.35 and 4,217.40

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Solution

The fourth proportional to 12,116.10, 18,175.35 and 4,217.40 is: 6,326.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,116.10 : 18,175.35 = 4,217.40 : x
  2. Step 2: Convert to fraction form
    12,116.10/18,175.35 = 4,217.40/x
  3. Step 3: Cross multiply
    12,116.10x = 18,175.35 × 4,217.40
  4. Step 4: Simplify right side
    12,116.10x = 76,652,721.09
  5. Step 5: Solve for x
    x = 76,652,721.09/12,116.10
  6. Step 6: Final answer
    x = 6,326.52

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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.