Home / 11,218.96-16,749.32-8,572.49

Finding the Fourth Proportional to 11,218.96, 16,749.32 and 8,572.49

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Solution

The fourth proportional to 11,218.96, 16,749.32 and 8,572.49 is: 12,798.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,218.96 : 16,749.32 = 8,572.49 : x
  2. Step 2: Convert to fraction form
    11,218.96/16,749.32 = 8,572.49/x
  3. Step 3: Cross multiply
    11,218.96x = 16,749.32 × 8,572.49
  4. Step 4: Simplify right side
    11,218.96x = 143,583,378.21
  5. Step 5: Solve for x
    x = 143,583,378.21/11,218.96
  6. Step 6: Final answer
    x = 12,798.28

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