Home / 11,751.23-16,215.85-6,445.19

Finding the Fourth Proportional to 11,751.23, 16,215.85 and 6,445.19

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Solution

The fourth proportional to 11,751.23, 16,215.85 and 6,445.19 is: 8,893.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,751.23 : 16,215.85 = 6,445.19 : x
  2. Step 2: Convert to fraction form
    11,751.23/16,215.85 = 6,445.19/x
  3. Step 3: Cross multiply
    11,751.23x = 16,215.85 × 6,445.19
  4. Step 4: Simplify right side
    11,751.23x = 104,514,234.26
  5. Step 5: Solve for x
    x = 104,514,234.26/11,751.23
  6. Step 6: Final answer
    x = 8,893.90

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Half scale
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Double scale
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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.