Home / 19,787.34-29,687.20-11,898.48

Finding the Fourth Proportional to 19,787.34, 29,687.20 and 11,898.48

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Solution

The fourth proportional to 19,787.34, 29,687.20 and 11,898.48 is: 17,851.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,787.34 : 29,687.20 = 11,898.48 : x
  2. Step 2: Convert to fraction form
    19,787.34/29,687.20 = 11,898.48/x
  3. Step 3: Cross multiply
    19,787.34x = 29,687.20 × 11,898.48
  4. Step 4: Simplify right side
    19,787.34x = 353,232,555.46
  5. Step 5: Solve for x
    x = 353,232,555.46/19,787.34
  6. Step 6: Final answer
    x = 17,851.44

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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.