Home / 14,126.64-21,176.18-6,729.12

Finding the Fourth Proportional to 14,126.64, 21,176.18 and 6,729.12

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Solution

The fourth proportional to 14,126.64, 21,176.18 and 6,729.12 is: 10,087.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,126.64 : 21,176.18 = 6,729.12 : x
  2. Step 2: Convert to fraction form
    14,126.64/21,176.18 = 6,729.12/x
  3. Step 3: Cross multiply
    14,126.64x = 21,176.18 × 6,729.12
  4. Step 4: Simplify right side
    14,126.64x = 142,497,022.72
  5. Step 5: Solve for x
    x = 142,497,022.72/14,126.64
  6. Step 6: Final answer
    x = 10,087.11

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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.