Home / 19,787.16-27,305.10-10,834.68

Finding the Fourth Proportional to 19,787.16, 27,305.10 and 10,834.68

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Solution

The fourth proportional to 19,787.16, 27,305.10 and 10,834.68 is: 14,951.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,787.16 : 27,305.10 = 10,834.68 : x
  2. Step 2: Convert to fraction form
    19,787.16/27,305.10 = 10,834.68/x
  3. Step 3: Cross multiply
    19,787.16x = 27,305.10 × 10,834.68
  4. Step 4: Simplify right side
    19,787.16x = 295,842,020.87
  5. Step 5: Solve for x
    x = 295,842,020.87/19,787.16
  6. Step 6: Final answer
    x = 14,951.21

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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.