Home / 9,219.93-13,831.95-2,645.61

Finding the Fourth Proportional to 9,219.93, 13,831.95 and 2,645.61

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Solution

The fourth proportional to 9,219.93, 13,831.95 and 2,645.61 is: 3,969.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,219.93 : 13,831.95 = 2,645.61 : x
  2. Step 2: Convert to fraction form
    9,219.93/13,831.95 = 2,645.61/x
  3. Step 3: Cross multiply
    9,219.93x = 13,831.95 × 2,645.61
  4. Step 4: Simplify right side
    9,219.93x = 36,593,945.24
  5. Step 5: Solve for x
    x = 36,593,945.24/9,219.93
  6. Step 6: Final answer
    x = 3,969.00

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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.