Home / 12,551.83-18,827.65-3,191.88

Finding the Fourth Proportional to 12,551.83, 18,827.65 and 3,191.88

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Solution

The fourth proportional to 12,551.83, 18,827.65 and 3,191.88 is: 4,787.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,551.83 : 18,827.65 = 3,191.88 : x
  2. Step 2: Convert to fraction form
    12,551.83/18,827.65 = 3,191.88/x
  3. Step 3: Cross multiply
    12,551.83x = 18,827.65 × 3,191.88
  4. Step 4: Simplify right side
    12,551.83x = 60,095,599.48
  5. Step 5: Solve for x
    x = 60,095,599.48/12,551.83
  6. Step 6: Final answer
    x = 4,787.80

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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.