Home / 18,901.20-26,083.28-11,831.52

Finding the Fourth Proportional to 18,901.20, 26,083.28 and 11,831.52

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Solution

The fourth proportional to 18,901.20, 26,083.28 and 11,831.52 is: 16,327.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,901.20 : 26,083.28 = 11,831.52 : x
  2. Step 2: Convert to fraction form
    18,901.20/26,083.28 = 11,831.52/x
  3. Step 3: Cross multiply
    18,901.20x = 26,083.28 × 11,831.52
  4. Step 4: Simplify right side
    18,901.20x = 308,604,848.99
  5. Step 5: Solve for x
    x = 308,604,848.99/18,901.20
  6. Step 6: Final answer
    x = 16,327.26

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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.