Home / 14,115.71-21,170.15-4,753.31

Finding the Fourth Proportional to 14,115.71, 21,170.15 and 4,753.31

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Solution

The fourth proportional to 14,115.71, 21,170.15 and 4,753.31 is: 7,128.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,115.71 : 21,170.15 = 4,753.31 : x
  2. Step 2: Convert to fraction form
    14,115.71/21,170.15 = 4,753.31/x
  3. Step 3: Cross multiply
    14,115.71x = 21,170.15 × 4,753.31
  4. Step 4: Simplify right side
    14,115.71x = 100,628,261.93
  5. Step 5: Solve for x
    x = 100,628,261.93/14,115.71
  6. Step 6: Final answer
    x = 7,128.81

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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.