Home / 18,253.55-27,378.20-5,106.95

Finding the Fourth Proportional to 18,253.55, 27,378.20 and 5,106.95

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Solution

The fourth proportional to 18,253.55, 27,378.20 and 5,106.95 is: 7,659.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,253.55 : 27,378.20 = 5,106.95 : x
  2. Step 2: Convert to fraction form
    18,253.55/27,378.20 = 5,106.95/x
  3. Step 3: Cross multiply
    18,253.55x = 27,378.20 × 5,106.95
  4. Step 4: Simplify right side
    18,253.55x = 139,819,077.03
  5. Step 5: Solve for x
    x = 139,819,077.03/18,253.55
  6. Step 6: Final answer
    x = 7,659.83

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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.