Home / 19,861.02-27,414.35-12,787.43

Finding the Fourth Proportional to 19,861.02, 27,414.35 and 12,787.43

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Solution

The fourth proportional to 19,861.02, 27,414.35 and 12,787.43 is: 17,650.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,861.02 : 27,414.35 = 12,787.43 : x
  2. Step 2: Convert to fraction form
    19,861.02/27,414.35 = 12,787.43/x
  3. Step 3: Cross multiply
    19,861.02x = 27,414.35 × 12,787.43
  4. Step 4: Simplify right side
    19,861.02x = 350,558,880.61
  5. Step 5: Solve for x
    x = 350,558,880.61/19,861.02
  6. Step 6: Final answer
    x = 17,650.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.