Home / 13,214.60-18,236.28-7,550.09

Finding the Fourth Proportional to 13,214.60, 18,236.28 and 7,550.09

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Solution

The fourth proportional to 13,214.60, 18,236.28 and 7,550.09 is: 10,419.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,214.60 : 18,236.28 = 7,550.09 : x
  2. Step 2: Convert to fraction form
    13,214.60/18,236.28 = 7,550.09/x
  3. Step 3: Cross multiply
    13,214.60x = 18,236.28 × 7,550.09
  4. Step 4: Simplify right side
    13,214.60x = 137,685,464.08
  5. Step 5: Solve for x
    x = 137,685,464.08/13,214.60
  6. Step 6: Final answer
    x = 10,419.20

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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.