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Finding the Fourth Proportional to 14,146.92, 21,188.06 and 6,756.61

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Solution

The fourth proportional to 14,146.92, 21,188.06 and 6,756.61 is: 10,119.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,146.92 : 21,188.06 = 6,756.61 : x
  2. Step 2: Convert to fraction form
    14,146.92/21,188.06 = 6,756.61/x
  3. Step 3: Cross multiply
    14,146.92x = 21,188.06 × 6,756.61
  4. Step 4: Simplify right side
    14,146.92x = 143,159,422.00
  5. Step 5: Solve for x
    x = 143,159,422.00/14,146.92
  6. Step 6: Final answer
    x = 10,119.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.