Home / 7,287.20-10,936.22-5,417.38

Finding the Fourth Proportional to 7,287.20, 10,936.22 and 5,417.38

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Solution

The fourth proportional to 7,287.20, 10,936.22 and 5,417.38 is: 8,130.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,287.20 : 10,936.22 = 5,417.38 : x
  2. Step 2: Convert to fraction form
    7,287.20/10,936.22 = 5,417.38/x
  3. Step 3: Cross multiply
    7,287.20x = 10,936.22 × 5,417.38
  4. Step 4: Simplify right side
    7,287.20x = 59,245,646.09
  5. Step 5: Solve for x
    x = 59,245,646.09/7,287.20
  6. Step 6: Final answer
    x = 8,130.10

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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.