Home / 18,947.39-26,146.24-10,449.60

Finding the Fourth Proportional to 18,947.39, 26,146.24 and 10,449.60

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Solution

The fourth proportional to 18,947.39, 26,146.24 and 10,449.60 is: 14,419.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,947.39 : 26,146.24 = 10,449.60 : x
  2. Step 2: Convert to fraction form
    18,947.39/26,146.24 = 10,449.60/x
  3. Step 3: Cross multiply
    18,947.39x = 26,146.24 × 10,449.60
  4. Step 4: Simplify right side
    18,947.39x = 273,217,762.57
  5. Step 5: Solve for x
    x = 273,217,762.57/18,947.39
  6. Step 6: Final answer
    x = 14,419.81

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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.