Home / 15,940.28-21,998.04-9,228.02

Finding the Fourth Proportional to 15,940.28, 21,998.04 and 9,228.02

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Solution

The fourth proportional to 15,940.28, 21,998.04 and 9,228.02 is: 12,734.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,940.28 : 21,998.04 = 9,228.02 : x
  2. Step 2: Convert to fraction form
    15,940.28/21,998.04 = 9,228.02/x
  3. Step 3: Cross multiply
    15,940.28x = 21,998.04 × 9,228.02
  4. Step 4: Simplify right side
    15,940.28x = 202,998,353.08
  5. Step 5: Solve for x
    x = 202,998,353.08/15,940.28
  6. Step 6: Final answer
    x = 12,734.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.