Home / 18,307.11-27,441.81-7,209.30

Finding the Fourth Proportional to 18,307.11, 27,441.81 and 7,209.30

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Solution

The fourth proportional to 18,307.11, 27,441.81 and 7,209.30 is: 10,806.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,307.11 : 27,441.81 = 7,209.30 : x
  2. Step 2: Convert to fraction form
    18,307.11/27,441.81 = 7,209.30/x
  3. Step 3: Cross multiply
    18,307.11x = 27,441.81 × 7,209.30
  4. Step 4: Simplify right side
    18,307.11x = 197,836,240.83
  5. Step 5: Solve for x
    x = 197,836,240.83/18,307.11
  6. Step 6: Final answer
    x = 10,806.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.