Home / 8,255.37-11,389.28-5,424.27

Finding the Fourth Proportional to 8,255.37, 11,389.28 and 5,424.27

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Solution

The fourth proportional to 8,255.37, 11,389.28 and 5,424.27 is: 7,483.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,255.37 : 11,389.28 = 5,424.27 : x
  2. Step 2: Convert to fraction form
    8,255.37/11,389.28 = 5,424.27/x
  3. Step 3: Cross multiply
    8,255.37x = 11,389.28 × 5,424.27
  4. Step 4: Simplify right side
    8,255.37x = 61,778,502.70
  5. Step 5: Solve for x
    x = 61,778,502.70/8,255.37
  6. Step 6: Final answer
    x = 7,483.43

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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.