Home / 14,135.43-21,203.60-7,111.61

Finding the Fourth Proportional to 14,135.43, 21,203.60 and 7,111.61

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Solution

The fourth proportional to 14,135.43, 21,203.60 and 7,111.61 is: 10,667.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,135.43 : 21,203.60 = 7,111.61 : x
  2. Step 2: Convert to fraction form
    14,135.43/21,203.60 = 7,111.61/x
  3. Step 3: Cross multiply
    14,135.43x = 21,203.60 × 7,111.61
  4. Step 4: Simplify right side
    14,135.43x = 150,791,592.22
  5. Step 5: Solve for x
    x = 150,791,592.22/14,135.43
  6. Step 6: Final answer
    x = 10,667.63

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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.