Home / 13,787.15-20,671.47-5,464.94

Finding the Fourth Proportional to 13,787.15, 20,671.47 and 5,464.94

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Solution

The fourth proportional to 13,787.15, 20,671.47 and 5,464.94 is: 8,193.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,787.15 : 20,671.47 = 5,464.94 : x
  2. Step 2: Convert to fraction form
    13,787.15/20,671.47 = 5,464.94/x
  3. Step 3: Cross multiply
    13,787.15x = 20,671.47 × 5,464.94
  4. Step 4: Simplify right side
    13,787.15x = 112,968,239.90
  5. Step 5: Solve for x
    x = 112,968,239.90/13,787.15
  6. Step 6: Final answer
    x = 8,193.74

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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.