Home / 10,686.42-14,747.94-6,211.17

Finding the Fourth Proportional to 10,686.42, 14,747.94 and 6,211.17

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Solution

The fourth proportional to 10,686.42, 14,747.94 and 6,211.17 is: 8,571.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,686.42 : 14,747.94 = 6,211.17 : x
  2. Step 2: Convert to fraction form
    10,686.42/14,747.94 = 6,211.17/x
  3. Step 3: Cross multiply
    10,686.42x = 14,747.94 × 6,211.17
  4. Step 4: Simplify right side
    10,686.42x = 91,601,962.49
  5. Step 5: Solve for x
    x = 91,601,962.49/10,686.42
  6. Step 6: Final answer
    x = 8,571.81

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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.