Home / 8,647.11-11,933.28-5,291.37

Finding the Fourth Proportional to 8,647.11, 11,933.28 and 5,291.37

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Solution

The fourth proportional to 8,647.11, 11,933.28 and 5,291.37 is: 7,302.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,647.11 : 11,933.28 = 5,291.37 : x
  2. Step 2: Convert to fraction form
    8,647.11/11,933.28 = 5,291.37/x
  3. Step 3: Cross multiply
    8,647.11x = 11,933.28 × 5,291.37
  4. Step 4: Simplify right side
    8,647.11x = 63,143,399.79
  5. Step 5: Solve for x
    x = 63,143,399.79/8,647.11
  6. Step 6: Final answer
    x = 7,302.25

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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.