Home / 13,214.60-18,236.10-7,246.12

Finding the Fourth Proportional to 13,214.60, 18,236.10 and 7,246.12

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Solution

The fourth proportional to 13,214.60, 18,236.10 and 7,246.12 is: 9,999.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,214.60 : 18,236.10 = 7,246.12 : x
  2. Step 2: Convert to fraction form
    13,214.60/18,236.10 = 7,246.12/x
  3. Step 3: Cross multiply
    13,214.60x = 18,236.10 × 7,246.12
  4. Step 4: Simplify right side
    13,214.60x = 132,140,877.75
  5. Step 5: Solve for x
    x = 132,140,877.75/13,214.60
  6. Step 6: Final answer
    x = 9,999.61

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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.