Home / 18,298.38-27,428.76-7,200.57

Finding the Fourth Proportional to 18,298.38, 27,428.76 and 7,200.57

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Solution

The fourth proportional to 18,298.38, 27,428.76 and 7,200.57 is: 10,793.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,298.38 : 27,428.76 = 7,200.57 : x
  2. Step 2: Convert to fraction form
    18,298.38/27,428.76 = 7,200.57/x
  3. Step 3: Cross multiply
    18,298.38x = 27,428.76 × 7,200.57
  4. Step 4: Simplify right side
    18,298.38x = 197,502,706.39
  5. Step 5: Solve for x
    x = 197,502,706.39/18,298.38
  6. Step 6: Final answer
    x = 10,793.45

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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.