Home / 8,887.16-13,321.26-6,689.09

Finding the Fourth Proportional to 8,887.16, 13,321.26 and 6,689.09

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Solution

The fourth proportional to 8,887.16, 13,321.26 and 6,689.09 is: 10,026.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,887.16 : 13,321.26 = 6,689.09 : x
  2. Step 2: Convert to fraction form
    8,887.16/13,321.26 = 6,689.09/x
  3. Step 3: Cross multiply
    8,887.16x = 13,321.26 × 6,689.09
  4. Step 4: Simplify right side
    8,887.16x = 89,107,040.45
  5. Step 5: Solve for x
    x = 89,107,040.45/8,887.16
  6. Step 6: Final answer
    x = 10,026.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.