Home / 15,833.82-21,848.20-9,119.73

Finding the Fourth Proportional to 15,833.82, 21,848.20 and 9,119.73

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Solution

The fourth proportional to 15,833.82, 21,848.20 and 9,119.73 is: 12,583.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,833.82 : 21,848.20 = 9,119.73 : x
  2. Step 2: Convert to fraction form
    15,833.82/21,848.20 = 9,119.73/x
  3. Step 3: Cross multiply
    15,833.82x = 21,848.20 × 9,119.73
  4. Step 4: Simplify right side
    15,833.82x = 199,249,684.99
  5. Step 5: Solve for x
    x = 199,249,684.99/15,833.82
  6. Step 6: Final answer
    x = 12,583.80

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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.