Home / 18,946.80-26,146.53-10,993.68

Finding the Fourth Proportional to 18,946.80, 26,146.53 and 10,993.68

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Solution

The fourth proportional to 18,946.80, 26,146.53 and 10,993.68 is: 15,171.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,946.80 : 26,146.53 = 10,993.68 : x
  2. Step 2: Convert to fraction form
    18,946.80/26,146.53 = 10,993.68/x
  3. Step 3: Cross multiply
    18,946.80x = 26,146.53 × 10,993.68
  4. Step 4: Simplify right side
    18,946.80x = 287,446,583.93
  5. Step 5: Solve for x
    x = 287,446,583.93/18,946.80
  6. Step 6: Final answer
    x = 15,171.25

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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.