Home / 15,831.84-23,755.86-8,040.72

Finding the Fourth Proportional to 15,831.84, 23,755.86 and 8,040.72

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Solution

The fourth proportional to 15,831.84, 23,755.86 and 8,040.72 is: 12,065.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,831.84 : 23,755.86 = 8,040.72 : x
  2. Step 2: Convert to fraction form
    15,831.84/23,755.86 = 8,040.72/x
  3. Step 3: Cross multiply
    15,831.84x = 23,755.86 × 8,040.72
  4. Step 4: Simplify right side
    15,831.84x = 191,014,218.62
  5. Step 5: Solve for x
    x = 191,014,218.62/15,831.84
  6. Step 6: Final answer
    x = 12,065.19

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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.