Home / 15,790.05-21,797.43-10,126.95

Finding the Fourth Proportional to 15,790.05, 21,797.43 and 10,126.95

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Solution

The fourth proportional to 15,790.05, 21,797.43 and 10,126.95 is: 13,979.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,790.05 : 21,797.43 = 10,126.95 : x
  2. Step 2: Convert to fraction form
    15,790.05/21,797.43 = 10,126.95/x
  3. Step 3: Cross multiply
    15,790.05x = 21,797.43 × 10,126.95
  4. Step 4: Simplify right side
    15,790.05x = 220,741,483.74
  5. Step 5: Solve for x
    x = 220,741,483.74/15,790.05
  6. Step 6: Final answer
    x = 13,979.78

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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.