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Finding the Fourth Proportional to 14,154.32, 21,222.48 and 6,754.88

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Solution

The fourth proportional to 14,154.32, 21,222.48 and 6,754.88 is: 10,128.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,154.32 : 21,222.48 = 6,754.88 : x
  2. Step 2: Convert to fraction form
    14,154.32/21,222.48 = 6,754.88/x
  3. Step 3: Cross multiply
    14,154.32x = 21,222.48 × 6,754.88
  4. Step 4: Simplify right side
    14,154.32x = 143,355,305.70
  5. Step 5: Solve for x
    x = 143,355,305.70/14,154.32
  6. Step 6: Final answer
    x = 10,128.02

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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.