Home / 18,906.06-28,356.36-6,426.51

Finding the Fourth Proportional to 18,906.06, 28,356.36 and 6,426.51

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Solution

The fourth proportional to 18,906.06, 28,356.36 and 6,426.51 is: 9,638.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,906.06 : 28,356.36 = 6,426.51 : x
  2. Step 2: Convert to fraction form
    18,906.06/28,356.36 = 6,426.51/x
  3. Step 3: Cross multiply
    18,906.06x = 28,356.36 × 6,426.51
  4. Step 4: Simplify right side
    18,906.06x = 182,232,431.10
  5. Step 5: Solve for x
    x = 182,232,431.10/18,906.06
  6. Step 6: Final answer
    x = 9,638.84

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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.