Home / 14,064.40-21,083.40-5,305.20

Finding the Fourth Proportional to 14,064.40, 21,083.40 and 5,305.20

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Solution

The fourth proportional to 14,064.40, 21,083.40 and 5,305.20 is: 7,952.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,064.40 : 21,083.40 = 5,305.20 : x
  2. Step 2: Convert to fraction form
    14,064.40/21,083.40 = 5,305.20/x
  3. Step 3: Cross multiply
    14,064.40x = 21,083.40 × 5,305.20
  4. Step 4: Simplify right side
    14,064.40x = 111,851,653.68
  5. Step 5: Solve for x
    x = 111,851,653.68/14,064.40
  6. Step 6: Final answer
    x = 7,952.82

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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.