Home / 13,328.96-18,384.17-8,550.36

Finding the Fourth Proportional to 13,328.96, 18,384.17 and 8,550.36

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Solution

The fourth proportional to 13,328.96, 18,384.17 and 8,550.36 is: 11,793.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,328.96 : 18,384.17 = 8,550.36 : x
  2. Step 2: Convert to fraction form
    13,328.96/18,384.17 = 8,550.36/x
  3. Step 3: Cross multiply
    13,328.96x = 18,384.17 × 8,550.36
  4. Step 4: Simplify right side
    13,328.96x = 157,191,229.05
  5. Step 5: Solve for x
    x = 157,191,229.05/13,328.96
  6. Step 6: Final answer
    x = 11,793.21

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