Home / 18,928.03-26,120.68-10,974.87

Finding the Fourth Proportional to 18,928.03, 26,120.68 and 10,974.87

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Solution

The fourth proportional to 18,928.03, 26,120.68 and 10,974.87 is: 15,145.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,928.03 : 26,120.68 = 10,974.87 : x
  2. Step 2: Convert to fraction form
    18,928.03/26,120.68 = 10,974.87/x
  3. Step 3: Cross multiply
    18,928.03x = 26,120.68 × 10,974.87
  4. Step 4: Simplify right side
    18,928.03x = 286,671,002.01
  5. Step 5: Solve for x
    x = 286,671,002.01/18,928.03
  6. Step 6: Final answer
    x = 15,145.32

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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.