Home / 14,377.25-21,565.88-3,989

Finding the Fourth Proportional to 14,377.25, 21,565.88 and 3,989

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Solution

The fourth proportional to 14,377.25, 21,565.88 and 3,989 is: 5,983.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,377.25 : 21,565.88 = 3,989 : x
  2. Step 2: Convert to fraction form
    14,377.25/21,565.88 = 3,989/x
  3. Step 3: Cross multiply
    14,377.25x = 21,565.88 × 3,989
  4. Step 4: Simplify right side
    14,377.25x = 86,026,295.32
  5. Step 5: Solve for x
    x = 86,026,295.32/14,377.25
  6. Step 6: Final answer
    x = 5,983.50

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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.