Home / 18,928.12-26,125.32-10,974.74

Finding the Fourth Proportional to 18,928.12, 26,125.32 and 10,974.74

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Solution

The fourth proportional to 18,928.12, 26,125.32 and 10,974.74 is: 15,147.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,928.12 : 26,125.32 = 10,974.74 : x
  2. Step 2: Convert to fraction form
    18,928.12/26,125.32 = 10,974.74/x
  3. Step 3: Cross multiply
    18,928.12x = 26,125.32 × 10,974.74
  4. Step 4: Simplify right side
    18,928.12x = 286,718,594.42
  5. Step 5: Solve for x
    x = 286,718,594.42/18,928.12
  6. Step 6: Final answer
    x = 15,147.76

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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.