Home / 11,127.69-15,355.29-6,347.61

Finding the Fourth Proportional to 11,127.69, 15,355.29 and 6,347.61

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Solution

The fourth proportional to 11,127.69, 15,355.29 and 6,347.61 is: 8,759.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,127.69 : 15,355.29 = 6,347.61 : x
  2. Step 2: Convert to fraction form
    11,127.69/15,355.29 = 6,347.61/x
  3. Step 3: Cross multiply
    11,127.69x = 15,355.29 × 6,347.61
  4. Step 4: Simplify right side
    11,127.69x = 97,469,392.36
  5. Step 5: Solve for x
    x = 97,469,392.36/11,127.69
  6. Step 6: Final answer
    x = 8,759.18

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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.