Home / 13,214.19-18,236.13-7,246.09

Finding the Fourth Proportional to 13,214.19, 18,236.13 and 7,246.09

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Solution

The fourth proportional to 13,214.19, 18,236.13 and 7,246.09 is: 9,999.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,214.19 : 18,236.13 = 7,246.09 : x
  2. Step 2: Convert to fraction form
    13,214.19/18,236.13 = 7,246.09/x
  3. Step 3: Cross multiply
    13,214.19x = 18,236.13 × 7,246.09
  4. Step 4: Simplify right side
    13,214.19x = 132,140,548.05
  5. Step 5: Solve for x
    x = 132,140,548.05/13,214.19
  6. Step 6: Final answer
    x = 9,999.90

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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.