Home / 8,321.07-11,487.69-5,672.37

Finding the Fourth Proportional to 8,321.07, 11,487.69 and 5,672.37

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Solution

The fourth proportional to 8,321.07, 11,487.69 and 5,672.37 is: 7,831.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,321.07 : 11,487.69 = 5,672.37 : x
  2. Step 2: Convert to fraction form
    8,321.07/11,487.69 = 5,672.37/x
  3. Step 3: Cross multiply
    8,321.07x = 11,487.69 × 5,672.37
  4. Step 4: Simplify right side
    8,321.07x = 65,162,428.13
  5. Step 5: Solve for x
    x = 65,162,428.13/8,321.07
  6. Step 6: Final answer
    x = 7,831.02

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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.