Home / 15,873.19-21,904.89-8,799.58

Finding the Fourth Proportional to 15,873.19, 21,904.89 and 8,799.58

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Solution

The fourth proportional to 15,873.19, 21,904.89 and 8,799.58 is: 12,143.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,873.19 : 21,904.89 = 8,799.58 : x
  2. Step 2: Convert to fraction form
    15,873.19/21,904.89 = 8,799.58/x
  3. Step 3: Cross multiply
    15,873.19x = 21,904.89 × 8,799.58
  4. Step 4: Simplify right side
    15,873.19x = 192,753,831.95
  5. Step 5: Solve for x
    x = 192,753,831.95/15,873.19
  6. Step 6: Final answer
    x = 12,143.36

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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.