Home / 18,815.56-28,203.58-6,331.25

Finding the Fourth Proportional to 18,815.56, 28,203.58 and 6,331.25

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Solution

The fourth proportional to 18,815.56, 28,203.58 and 6,331.25 is: 9,490.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,815.56 : 28,203.58 = 6,331.25 : x
  2. Step 2: Convert to fraction form
    18,815.56/28,203.58 = 6,331.25/x
  3. Step 3: Cross multiply
    18,815.56x = 28,203.58 × 6,331.25
  4. Step 4: Simplify right side
    18,815.56x = 178,563,888.53
  5. Step 5: Solve for x
    x = 178,563,888.53/18,815.56
  6. Step 6: Final answer
    x = 9,490.23

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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.