Home / 18,557.08-27,831.30-8,686.96

Finding the Fourth Proportional to 18,557.08, 27,831.30 and 8,686.96

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Solution

The fourth proportional to 18,557.08, 27,831.30 and 8,686.96 is: 13,028.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,557.08 : 27,831.30 = 8,686.96 : x
  2. Step 2: Convert to fraction form
    18,557.08/27,831.30 = 8,686.96/x
  3. Step 3: Cross multiply
    18,557.08x = 27,831.30 × 8,686.96
  4. Step 4: Simplify right side
    18,557.08x = 241,769,389.85
  5. Step 5: Solve for x
    x = 241,769,389.85/18,557.08
  6. Step 6: Final answer
    x = 13,028.42

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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.