Home / 18,559.12-27,859.20-9,791.68

Finding the Fourth Proportional to 18,559.12, 27,859.20 and 9,791.68

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Solution

The fourth proportional to 18,559.12, 27,859.20 and 9,791.68 is: 14,698.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,559.12 : 27,859.20 = 9,791.68 : x
  2. Step 2: Convert to fraction form
    18,559.12/27,859.20 = 9,791.68/x
  3. Step 3: Cross multiply
    18,559.12x = 27,859.20 × 9,791.68
  4. Step 4: Simplify right side
    18,559.12x = 272,788,371.46
  5. Step 5: Solve for x
    x = 272,788,371.46/18,559.12
  6. Step 6: Final answer
    x = 14,698.35

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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.