Home / 13,231.89-19,844.47-4,907.31

Finding the Fourth Proportional to 13,231.89, 19,844.47 and 4,907.31

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Solution

The fourth proportional to 13,231.89, 19,844.47 and 4,907.31 is: 7,359.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,231.89 : 19,844.47 = 4,907.31 : x
  2. Step 2: Convert to fraction form
    13,231.89/19,844.47 = 4,907.31/x
  3. Step 3: Cross multiply
    13,231.89x = 19,844.47 × 4,907.31
  4. Step 4: Simplify right side
    13,231.89x = 97,382,966.08
  5. Step 5: Solve for x
    x = 97,382,966.08/13,231.89
  6. Step 6: Final answer
    x = 7,359.72

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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.