Home / 9,721.62-13,411.17-6,362.96

Finding the Fourth Proportional to 9,721.62, 13,411.17 and 6,362.96

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Solution

The fourth proportional to 9,721.62, 13,411.17 and 6,362.96 is: 8,777.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,721.62 : 13,411.17 = 6,362.96 : x
  2. Step 2: Convert to fraction form
    9,721.62/13,411.17 = 6,362.96/x
  3. Step 3: Cross multiply
    9,721.62x = 13,411.17 × 6,362.96
  4. Step 4: Simplify right side
    9,721.62x = 85,334,671.21
  5. Step 5: Solve for x
    x = 85,334,671.21/9,721.62
  6. Step 6: Final answer
    x = 8,777.82

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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.