Home / 14,100.45-21,152.09-5,218.12

Finding the Fourth Proportional to 14,100.45, 21,152.09 and 5,218.12

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Solution

The fourth proportional to 14,100.45, 21,152.09 and 5,218.12 is: 7,827.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,100.45 : 21,152.09 = 5,218.12 : x
  2. Step 2: Convert to fraction form
    14,100.45/21,152.09 = 5,218.12/x
  3. Step 3: Cross multiply
    14,100.45x = 21,152.09 × 5,218.12
  4. Step 4: Simplify right side
    14,100.45x = 110,374,143.87
  5. Step 5: Solve for x
    x = 110,374,143.87/14,100.45
  6. Step 6: Final answer
    x = 7,827.70

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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.