Home / 14,155.97-21,223.82-6,655.31

Finding the Fourth Proportional to 14,155.97, 21,223.82 and 6,655.31

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Solution

The fourth proportional to 14,155.97, 21,223.82 and 6,655.31 is: 9,978.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,155.97 : 21,223.82 = 6,655.31 : x
  2. Step 2: Convert to fraction form
    14,155.97/21,223.82 = 6,655.31/x
  3. Step 3: Cross multiply
    14,155.97x = 21,223.82 × 6,655.31
  4. Step 4: Simplify right side
    14,155.97x = 141,251,210.98
  5. Step 5: Solve for x
    x = 141,251,210.98/14,155.97
  6. Step 6: Final answer
    x = 9,978.21

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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.