Home / 14,107.68-21,037.32-13,122.72

Finding the Fourth Proportional to 14,107.68, 21,037.32 and 13,122.72

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Solution

The fourth proportional to 14,107.68, 21,037.32 and 13,122.72 is: 19,568.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,107.68 : 21,037.32 = 13,122.72 : x
  2. Step 2: Convert to fraction form
    14,107.68/21,037.32 = 13,122.72/x
  3. Step 3: Cross multiply
    14,107.68x = 21,037.32 × 13,122.72
  4. Step 4: Simplify right side
    14,107.68x = 276,066,859.91
  5. Step 5: Solve for x
    x = 276,066,859.91/14,107.68
  6. Step 6: Final answer
    x = 19,568.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.