Home / 19,687.15-27,168.21-10,734.68

Finding the Fourth Proportional to 19,687.15, 27,168.21 and 10,734.68

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Solution

The fourth proportional to 19,687.15, 27,168.21 and 10,734.68 is: 14,813.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,687.15 : 27,168.21 = 10,734.68 : x
  2. Step 2: Convert to fraction form
    19,687.15/27,168.21 = 10,734.68/x
  3. Step 3: Cross multiply
    19,687.15x = 27,168.21 × 10,734.68
  4. Step 4: Simplify right side
    19,687.15x = 291,641,955.62
  5. Step 5: Solve for x
    x = 291,641,955.62/19,687.15
  6. Step 6: Final answer
    x = 14,813.82

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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.