Home / 9,921.76-13,689.75-5,943.58

Finding the Fourth Proportional to 9,921.76, 13,689.75 and 5,943.58

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Solution

The fourth proportional to 9,921.76, 13,689.75 and 5,943.58 is: 8,200.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,921.76 : 13,689.75 = 5,943.58 : x
  2. Step 2: Convert to fraction form
    9,921.76/13,689.75 = 5,943.58/x
  3. Step 3: Cross multiply
    9,921.76x = 13,689.75 × 5,943.58
  4. Step 4: Simplify right side
    9,921.76x = 81,366,124.31
  5. Step 5: Solve for x
    x = 81,366,124.31/9,921.76
  6. Step 6: Final answer
    x = 8,200.78

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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.