Home / 13,787.64-20,697.66-7,216.92

Finding the Fourth Proportional to 13,787.64, 20,697.66 and 7,216.92

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Solution

The fourth proportional to 13,787.64, 20,697.66 and 7,216.92 is: 10,833.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,787.64 : 20,697.66 = 7,216.92 : x
  2. Step 2: Convert to fraction form
    13,787.64/20,697.66 = 7,216.92/x
  3. Step 3: Cross multiply
    13,787.64x = 20,697.66 × 7,216.92
  4. Step 4: Simplify right side
    13,787.64x = 149,373,356.41
  5. Step 5: Solve for x
    x = 149,373,356.41/13,787.64
  6. Step 6: Final answer
    x = 10,833.86

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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.