Home / 7,389.54-10,198.45-5,399.10

Finding the Fourth Proportional to 7,389.54, 10,198.45 and 5,399.10

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Solution

The fourth proportional to 7,389.54, 10,198.45 and 5,399.10 is: 7,451.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,389.54 : 10,198.45 = 5,399.10 : x
  2. Step 2: Convert to fraction form
    7,389.54/10,198.45 = 5,399.10/x
  3. Step 3: Cross multiply
    7,389.54x = 10,198.45 × 5,399.10
  4. Step 4: Simplify right side
    7,389.54x = 55,062,400.40
  5. Step 5: Solve for x
    x = 55,062,400.40/7,389.54
  6. Step 6: Final answer
    x = 7,451.40

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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.