Home / 18,842.84-28,268.25-7,155.80

Finding the Fourth Proportional to 18,842.84, 28,268.25 and 7,155.80

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Solution

The fourth proportional to 18,842.84, 28,268.25 and 7,155.80 is: 10,735.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,842.84 : 28,268.25 = 7,155.80 : x
  2. Step 2: Convert to fraction form
    18,842.84/28,268.25 = 7,155.80/x
  3. Step 3: Cross multiply
    18,842.84x = 28,268.25 × 7,155.80
  4. Step 4: Simplify right side
    18,842.84x = 202,281,943.35
  5. Step 5: Solve for x
    x = 202,281,943.35/18,842.84
  6. Step 6: Final answer
    x = 10,735.22

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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.