Home / 18,930.21-26,124.57-10,974.93

Finding the Fourth Proportional to 18,930.21, 26,124.57 and 10,974.93

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Solution

The fourth proportional to 18,930.21, 26,124.57 and 10,974.93 is: 15,145.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,930.21 : 26,124.57 = 10,974.93 : x
  2. Step 2: Convert to fraction form
    18,930.21/26,124.57 = 10,974.93/x
  3. Step 3: Cross multiply
    18,930.21x = 26,124.57 × 10,974.93
  4. Step 4: Simplify right side
    18,930.21x = 286,715,327.03
  5. Step 5: Solve for x
    x = 286,715,327.03/18,930.21
  6. Step 6: Final answer
    x = 15,145.91

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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.