Home / 13,340.18-18,418.04-8,562.19

Finding the Fourth Proportional to 13,340.18, 18,418.04 and 8,562.19

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Solution

The fourth proportional to 13,340.18, 18,418.04 and 8,562.19 is: 11,821.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.18 : 18,418.04 = 8,562.19 : x
  2. Step 2: Convert to fraction form
    13,340.18/18,418.04 = 8,562.19/x
  3. Step 3: Cross multiply
    13,340.18x = 18,418.04 × 8,562.19
  4. Step 4: Simplify right side
    13,340.18x = 157,698,757.91
  5. Step 5: Solve for x
    x = 157,698,757.91/13,340.18
  6. Step 6: Final answer
    x = 11,821.34

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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.