Home / 15,641.16-23,470.80-5,787.36

Finding the Fourth Proportional to 15,641.16, 23,470.80 and 5,787.36

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Solution

The fourth proportional to 15,641.16, 23,470.80 and 5,787.36 is: 8,684.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,641.16 : 23,470.80 = 5,787.36 : x
  2. Step 2: Convert to fraction form
    15,641.16/23,470.80 = 5,787.36/x
  3. Step 3: Cross multiply
    15,641.16x = 23,470.80 × 5,787.36
  4. Step 4: Simplify right side
    15,641.16x = 135,833,969.09
  5. Step 5: Solve for x
    x = 135,833,969.09/15,641.16
  6. Step 6: Final answer
    x = 8,684.39

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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.