Home / 18,600.04-27,900.06-8,209.72

Finding the Fourth Proportional to 18,600.04, 27,900.06 and 8,209.72

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Solution

The fourth proportional to 18,600.04, 27,900.06 and 8,209.72 is: 12,314.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,600.04 : 27,900.06 = 8,209.72 : x
  2. Step 2: Convert to fraction form
    18,600.04/27,900.06 = 8,209.72/x
  3. Step 3: Cross multiply
    18,600.04x = 27,900.06 × 8,209.72
  4. Step 4: Simplify right side
    18,600.04x = 229,051,680.58
  5. Step 5: Solve for x
    x = 229,051,680.58/18,600.04
  6. Step 6: Final answer
    x = 12,314.58

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1.5x scale

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.