Home / 11,689.77-16,127.28-7,205.73

Finding the Fourth Proportional to 11,689.77, 16,127.28 and 7,205.73

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Solution

The fourth proportional to 11,689.77, 16,127.28 and 7,205.73 is: 9,941.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,689.77 : 16,127.28 = 7,205.73 : x
  2. Step 2: Convert to fraction form
    11,689.77/16,127.28 = 7,205.73/x
  3. Step 3: Cross multiply
    11,689.77x = 16,127.28 × 7,205.73
  4. Step 4: Simplify right side
    11,689.77x = 116,208,825.31
  5. Step 5: Solve for x
    x = 116,208,825.31/11,689.77
  6. Step 6: Final answer
    x = 9,941.07

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Double scale
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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.