Home / 13,210.27-18,230.40-7,241.56

Finding the Fourth Proportional to 13,210.27, 18,230.40 and 7,241.56

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Solution

The fourth proportional to 13,210.27, 18,230.40 and 7,241.56 is: 9,993.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,210.27 : 18,230.40 = 7,241.56 : x
  2. Step 2: Convert to fraction form
    13,210.27/18,230.40 = 7,241.56/x
  3. Step 3: Cross multiply
    13,210.27x = 18,230.40 × 7,241.56
  4. Step 4: Simplify right side
    13,210.27x = 132,016,535.42
  5. Step 5: Solve for x
    x = 132,016,535.42/13,210.27
  6. Step 6: Final answer
    x = 9,993.48

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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.