Home / 12,787.77-19,173.46-8,827.94

Finding the Fourth Proportional to 12,787.77, 19,173.46 and 8,827.94

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Solution

The fourth proportional to 12,787.77, 19,173.46 and 8,827.94 is: 13,236.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,787.77 : 19,173.46 = 8,827.94 : x
  2. Step 2: Convert to fraction form
    12,787.77/19,173.46 = 8,827.94/x
  3. Step 3: Cross multiply
    12,787.77x = 19,173.46 × 8,827.94
  4. Step 4: Simplify right side
    12,787.77x = 169,262,089.04
  5. Step 5: Solve for x
    x = 169,262,089.04/12,787.77
  6. Step 6: Final answer
    x = 13,236.24

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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.