Home / 18,997.03-28,478.12-7,301.44

Finding the Fourth Proportional to 18,997.03, 28,478.12 and 7,301.44

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Solution

The fourth proportional to 18,997.03, 28,478.12 and 7,301.44 is: 10,945.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,997.03 : 28,478.12 = 7,301.44 : x
  2. Step 2: Convert to fraction form
    18,997.03/28,478.12 = 7,301.44/x
  3. Step 3: Cross multiply
    18,997.03x = 28,478.12 × 7,301.44
  4. Step 4: Simplify right side
    18,997.03x = 207,931,284.49
  5. Step 5: Solve for x
    x = 207,931,284.49/18,997.03
  6. Step 6: Final answer
    x = 10,945.46

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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.