Home / 14,121.16-21,160.14-7,548.28

Finding the Fourth Proportional to 14,121.16, 21,160.14 and 7,548.28

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Solution

The fourth proportional to 14,121.16, 21,160.14 and 7,548.28 is: 11,310.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.16 : 21,160.14 = 7,548.28 : x
  2. Step 2: Convert to fraction form
    14,121.16/21,160.14 = 7,548.28/x
  3. Step 3: Cross multiply
    14,121.16x = 21,160.14 × 7,548.28
  4. Step 4: Simplify right side
    14,121.16x = 159,722,661.56
  5. Step 5: Solve for x
    x = 159,722,661.56/14,121.16
  6. Step 6: Final answer
    x = 11,310.87

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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.