Home / 10,625.12-14,665.68-8,515.36

Finding the Fourth Proportional to 10,625.12, 14,665.68 and 8,515.36

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Solution

The fourth proportional to 10,625.12, 14,665.68 and 8,515.36 is: 11,753.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,625.12 : 14,665.68 = 8,515.36 : x
  2. Step 2: Convert to fraction form
    10,625.12/14,665.68 = 8,515.36/x
  3. Step 3: Cross multiply
    10,625.12x = 14,665.68 × 8,515.36
  4. Step 4: Simplify right side
    10,625.12x = 124,883,544.84
  5. Step 5: Solve for x
    x = 124,883,544.84/10,625.12
  6. Step 6: Final answer
    x = 11,753.61

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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.