Home / 18,997.07-28,478.16-7,301.48

Finding the Fourth Proportional to 18,997.07, 28,478.16 and 7,301.48

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Solution

The fourth proportional to 18,997.07, 28,478.16 and 7,301.48 is: 10,945.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,997.07 : 28,478.16 = 7,301.48 : x
  2. Step 2: Convert to fraction form
    18,997.07/28,478.16 = 7,301.48/x
  3. Step 3: Cross multiply
    18,997.07x = 28,478.16 × 7,301.48
  4. Step 4: Simplify right side
    18,997.07x = 207,932,573.29
  5. Step 5: Solve for x
    x = 207,932,573.29/18,997.07
  6. Step 6: Final answer
    x = 10,945.51

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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.