Home / 14,651.10-20,217.32-8,278.25

Finding the Fourth Proportional to 14,651.10, 20,217.32 and 8,278.25

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Solution

The fourth proportional to 14,651.10, 20,217.32 and 8,278.25 is: 11,423.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,651.10 : 20,217.32 = 8,278.25 : x
  2. Step 2: Convert to fraction form
    14,651.10/20,217.32 = 8,278.25/x
  3. Step 3: Cross multiply
    14,651.10x = 20,217.32 × 8,278.25
  4. Step 4: Simplify right side
    14,651.10x = 167,364,029.29
  5. Step 5: Solve for x
    x = 167,364,029.29/14,651.10
  6. Step 6: Final answer
    x = 11,423.31

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.