Home / 7,972.46-11,002.35-6,643.94

Finding the Fourth Proportional to 7,972.46, 11,002.35 and 6,643.94

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Solution

The fourth proportional to 7,972.46, 11,002.35 and 6,643.94 is: 9,168.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,972.46 : 11,002.35 = 6,643.94 : x
  2. Step 2: Convert to fraction form
    7,972.46/11,002.35 = 6,643.94/x
  3. Step 3: Cross multiply
    7,972.46x = 11,002.35 × 6,643.94
  4. Step 4: Simplify right side
    7,972.46x = 73,098,953.26
  5. Step 5: Solve for x
    x = 73,098,953.26/7,972.46
  6. Step 6: Final answer
    x = 9,168.93

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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.