Home / 18,906.55-28,357.39-6,426.07

Finding the Fourth Proportional to 18,906.55, 28,357.39 and 6,426.07

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Solution

The fourth proportional to 18,906.55, 28,357.39 and 6,426.07 is: 9,638.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,906.55 : 28,357.39 = 6,426.07 : x
  2. Step 2: Convert to fraction form
    18,906.55/28,357.39 = 6,426.07/x
  3. Step 3: Cross multiply
    18,906.55x = 28,357.39 × 6,426.07
  4. Step 4: Simplify right side
    18,906.55x = 182,226,510.30
  5. Step 5: Solve for x
    x = 182,226,510.30/18,906.55
  6. Step 6: Final answer
    x = 9,638.28

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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.