Home / 8,253.37-11,389.80-5,065.07

Finding the Fourth Proportional to 8,253.37, 11,389.80 and 5,065.07

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Solution

The fourth proportional to 8,253.37, 11,389.80 and 5,065.07 is: 6,989.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,253.37 : 11,389.80 = 5,065.07 : x
  2. Step 2: Convert to fraction form
    8,253.37/11,389.80 = 5,065.07/x
  3. Step 3: Cross multiply
    8,253.37x = 11,389.80 × 5,065.07
  4. Step 4: Simplify right side
    8,253.37x = 57,690,131.92
  5. Step 5: Solve for x
    x = 57,690,131.92/8,253.37
  6. Step 6: Final answer
    x = 6,989.89

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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.