Home / 8,130.29-11,218.28-5,144.03

Finding the Fourth Proportional to 8,130.29, 11,218.28 and 5,144.03

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Solution

The fourth proportional to 8,130.29, 11,218.28 and 5,144.03 is: 7,097.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130.29 : 11,218.28 = 5,144.03 : x
  2. Step 2: Convert to fraction form
    8,130.29/11,218.28 = 5,144.03/x
  3. Step 3: Cross multiply
    8,130.29x = 11,218.28 × 5,144.03
  4. Step 4: Simplify right side
    8,130.29x = 57,707,168.87
  5. Step 5: Solve for x
    x = 57,707,168.87/8,130.29
  6. Step 6: Final answer
    x = 7,097.80

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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.