Home / 13,195.40-18,209.69-7,227.02

Finding the Fourth Proportional to 13,195.40, 18,209.69 and 7,227.02

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Solution

The fourth proportional to 13,195.40, 18,209.69 and 7,227.02 is: 9,973.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195.40 : 18,209.69 = 7,227.02 : x
  2. Step 2: Convert to fraction form
    13,195.40/18,209.69 = 7,227.02/x
  3. Step 3: Cross multiply
    13,195.40x = 18,209.69 × 7,227.02
  4. Step 4: Simplify right side
    13,195.40x = 131,601,720.84
  5. Step 5: Solve for x
    x = 131,601,720.84/13,195.40
  6. Step 6: Final answer
    x = 9,973.31

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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.