Home / 14,239.36-21,372.05-7,224.20

Finding the Fourth Proportional to 14,239.36, 21,372.05 and 7,224.20

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Solution

The fourth proportional to 14,239.36, 21,372.05 and 7,224.20 is: 10,842.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,239.36 : 21,372.05 = 7,224.20 : x
  2. Step 2: Convert to fraction form
    14,239.36/21,372.05 = 7,224.20/x
  3. Step 3: Cross multiply
    14,239.36x = 21,372.05 × 7,224.20
  4. Step 4: Simplify right side
    14,239.36x = 154,395,927.49
  5. Step 5: Solve for x
    x = 154,395,927.49/14,239.36
  6. Step 6: Final answer
    x = 10,842.90

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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.