Home / 13,787.88-20,673.18-9,102.92

Finding the Fourth Proportional to 13,787.88, 20,673.18 and 9,102.92

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Solution

The fourth proportional to 13,787.88, 20,673.18 and 9,102.92 is: 13,648.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,787.88 : 20,673.18 = 9,102.92 : x
  2. Step 2: Convert to fraction form
    13,787.88/20,673.18 = 9,102.92/x
  3. Step 3: Cross multiply
    13,787.88x = 20,673.18 × 9,102.92
  4. Step 4: Simplify right side
    13,787.88x = 188,186,303.69
  5. Step 5: Solve for x
    x = 188,186,303.69/13,787.88
  6. Step 6: Final answer
    x = 13,648.68

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1.5x scale

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.