Home / 18,305.40-27,439.20-9,967.80

Finding the Fourth Proportional to 18,305.40, 27,439.20 and 9,967.80

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Solution

The fourth proportional to 18,305.40, 27,439.20 and 9,967.80 is: 14,941.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,305.40 : 27,439.20 = 9,967.80 : x
  2. Step 2: Convert to fraction form
    18,305.40/27,439.20 = 9,967.80/x
  3. Step 3: Cross multiply
    18,305.40x = 27,439.20 × 9,967.80
  4. Step 4: Simplify right side
    18,305.40x = 273,508,457.76
  5. Step 5: Solve for x
    x = 273,508,457.76/18,305.40
  6. Step 6: Final answer
    x = 14,941.41

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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.