Home / 12,731.40-19,092.53-4,409.18

Finding the Fourth Proportional to 12,731.40, 19,092.53 and 4,409.18

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Solution

The fourth proportional to 12,731.40, 19,092.53 and 4,409.18 is: 6,612.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,731.40 : 19,092.53 = 4,409.18 : x
  2. Step 2: Convert to fraction form
    12,731.40/19,092.53 = 4,409.18/x
  3. Step 3: Cross multiply
    12,731.40x = 19,092.53 × 4,409.18
  4. Step 4: Simplify right side
    12,731.40x = 84,182,283.92
  5. Step 5: Solve for x
    x = 84,182,283.92/12,731.40
  6. Step 6: Final answer
    x = 6,612.18

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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.