Home / 19,639.64-27,134.42-13,697.83

Finding the Fourth Proportional to 19,639.64, 27,134.42 and 13,697.83

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Solution

The fourth proportional to 19,639.64, 27,134.42 and 13,697.83 is: 18,925.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,639.64 : 27,134.42 = 13,697.83 : x
  2. Step 2: Convert to fraction form
    19,639.64/27,134.42 = 13,697.83/x
  3. Step 3: Cross multiply
    19,639.64x = 27,134.42 × 13,697.83
  4. Step 4: Simplify right side
    19,639.64x = 371,682,752.58
  5. Step 5: Solve for x
    x = 371,682,752.58/19,639.64
  6. Step 6: Final answer
    x = 18,925.13

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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.