Home / 18,926.64-28,373.46-7,826.40

Finding the Fourth Proportional to 18,926.64, 28,373.46 and 7,826.40

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Solution

The fourth proportional to 18,926.64, 28,373.46 and 7,826.40 is: 11,732.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,926.64 : 28,373.46 = 7,826.40 : x
  2. Step 2: Convert to fraction form
    18,926.64/28,373.46 = 7,826.40/x
  3. Step 3: Cross multiply
    18,926.64x = 28,373.46 × 7,826.40
  4. Step 4: Simplify right side
    18,926.64x = 222,062,047.34
  5. Step 5: Solve for x
    x = 222,062,047.34/18,926.64
  6. Step 6: Final answer
    x = 11,732.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.