Home / 12,863.91-19,298.02-4,430.08

Finding the Fourth Proportional to 12,863.91, 19,298.02 and 4,430.08

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Solution

The fourth proportional to 12,863.91, 19,298.02 and 4,430.08 is: 6,645.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,863.91 : 19,298.02 = 4,430.08 : x
  2. Step 2: Convert to fraction form
    12,863.91/19,298.02 = 4,430.08/x
  3. Step 3: Cross multiply
    12,863.91x = 19,298.02 × 4,430.08
  4. Step 4: Simplify right side
    12,863.91x = 85,491,772.44
  5. Step 5: Solve for x
    x = 85,491,772.44/12,863.91
  6. Step 6: Final answer
    x = 6,645.86

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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.