Home / 13,020.64-19,532.40-3,787.36

Finding the Fourth Proportional to 13,020.64, 19,532.40 and 3,787.36

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Solution

The fourth proportional to 13,020.64, 19,532.40 and 3,787.36 is: 5,681.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,020.64 : 19,532.40 = 3,787.36 : x
  2. Step 2: Convert to fraction form
    13,020.64/19,532.40 = 3,787.36/x
  3. Step 3: Cross multiply
    13,020.64x = 19,532.40 × 3,787.36
  4. Step 4: Simplify right side
    13,020.64x = 73,976,230.46
  5. Step 5: Solve for x
    x = 73,976,230.46/13,020.64
  6. Step 6: Final answer
    x = 5,681.46

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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.