Home / 13,214.19-18,235.61-7,245.96

Finding the Fourth Proportional to 13,214.19, 18,235.61 and 7,245.96

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Solution

The fourth proportional to 13,214.19, 18,235.61 and 7,245.96 is: 9,999.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,214.19 : 18,235.61 = 7,245.96 : x
  2. Step 2: Convert to fraction form
    13,214.19/18,235.61 = 7,245.96/x
  3. Step 3: Cross multiply
    13,214.19x = 18,235.61 × 7,245.96
  4. Step 4: Simplify right side
    13,214.19x = 132,134,464.41
  5. Step 5: Solve for x
    x = 132,134,464.41/13,214.19
  6. Step 6: Final answer
    x = 9,999.44

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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.