Home / 12,761.25-19,141.88-4,975.53

Finding the Fourth Proportional to 12,761.25, 19,141.88 and 4,975.53

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Solution

The fourth proportional to 12,761.25, 19,141.88 and 4,975.53 is: 7,463.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,761.25 : 19,141.88 = 4,975.53 : x
  2. Step 2: Convert to fraction form
    12,761.25/19,141.88 = 4,975.53/x
  3. Step 3: Cross multiply
    12,761.25x = 19,141.88 × 4,975.53
  4. Step 4: Simplify right side
    12,761.25x = 95,240,973.32
  5. Step 5: Solve for x
    x = 95,240,973.32/12,761.25
  6. Step 6: Final answer
    x = 7,463.30

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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.