Home / 8,282.13-11,433.57-6,389.47

Finding the Fourth Proportional to 8,282.13, 11,433.57 and 6,389.47

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Solution

The fourth proportional to 8,282.13, 11,433.57 and 6,389.47 is: 8,820.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,282.13 : 11,433.57 = 6,389.47 : x
  2. Step 2: Convert to fraction form
    8,282.13/11,433.57 = 6,389.47/x
  3. Step 3: Cross multiply
    8,282.13x = 11,433.57 × 6,389.47
  4. Step 4: Simplify right side
    8,282.13x = 73,054,452.51
  5. Step 5: Solve for x
    x = 73,054,452.51/8,282.13
  6. Step 6: Final answer
    x = 8,820.73

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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.