Home / 14,311.89-21,471.27-5,987.28

Finding the Fourth Proportional to 14,311.89, 21,471.27 and 5,987.28

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Solution

The fourth proportional to 14,311.89, 21,471.27 and 5,987.28 is: 8,982.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,311.89 : 21,471.27 = 5,987.28 : x
  2. Step 2: Convert to fraction form
    14,311.89/21,471.27 = 5,987.28/x
  3. Step 3: Cross multiply
    14,311.89x = 21,471.27 × 5,987.28
  4. Step 4: Simplify right side
    14,311.89x = 128,554,505.45
  5. Step 5: Solve for x
    x = 128,554,505.45/14,311.89
  6. Step 6: Final answer
    x = 8,982.36

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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.