Home / 13,561.06-18,701.77-9,304.61

Finding the Fourth Proportional to 13,561.06, 18,701.77 and 9,304.61

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Solution

The fourth proportional to 13,561.06, 18,701.77 and 9,304.61 is: 12,831.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,561.06 : 18,701.77 = 9,304.61 : x
  2. Step 2: Convert to fraction form
    13,561.06/18,701.77 = 9,304.61/x
  3. Step 3: Cross multiply
    13,561.06x = 18,701.77 × 9,304.61
  4. Step 4: Simplify right side
    13,561.06x = 174,012,694.99
  5. Step 5: Solve for x
    x = 174,012,694.99/13,561.06
  6. Step 6: Final answer
    x = 12,831.79

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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.