Home / 18,661.60-25,758.30-12,292.84

Finding the Fourth Proportional to 18,661.60, 25,758.30 and 12,292.84

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Solution

The fourth proportional to 18,661.60, 25,758.30 and 12,292.84 is: 16,967.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,661.60 : 25,758.30 = 12,292.84 : x
  2. Step 2: Convert to fraction form
    18,661.60/25,758.30 = 12,292.84/x
  3. Step 3: Cross multiply
    18,661.60x = 25,758.30 × 12,292.84
  4. Step 4: Simplify right side
    18,661.60x = 316,642,660.57
  5. Step 5: Solve for x
    x = 316,642,660.57/18,661.60
  6. Step 6: Final answer
    x = 16,967.61

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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.