Home / 13,209.47-18,229.08-7,241.36

Finding the Fourth Proportional to 13,209.47, 18,229.08 and 7,241.36

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Solution

The fourth proportional to 13,209.47, 18,229.08 and 7,241.36 is: 9,993.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209.47 : 18,229.08 = 7,241.36 : x
  2. Step 2: Convert to fraction form
    13,209.47/18,229.08 = 7,241.36/x
  3. Step 3: Cross multiply
    13,209.47x = 18,229.08 × 7,241.36
  4. Step 4: Simplify right side
    13,209.47x = 132,003,266.76
  5. Step 5: Solve for x
    x = 132,003,266.76/13,209.47
  6. Step 6: Final answer
    x = 9,993.08

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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.