Home / 19,919.07-27,489.02-10,966.95

Finding the Fourth Proportional to 19,919.07, 27,489.02 and 10,966.95

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Solution

The fourth proportional to 19,919.07, 27,489.02 and 10,966.95 is: 15,134.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,919.07 : 27,489.02 = 10,966.95 : x
  2. Step 2: Convert to fraction form
    19,919.07/27,489.02 = 10,966.95/x
  3. Step 3: Cross multiply
    19,919.07x = 27,489.02 × 10,966.95
  4. Step 4: Simplify right side
    19,919.07x = 301,470,653.05
  5. Step 5: Solve for x
    x = 301,470,653.05/19,919.07
  6. Step 6: Final answer
    x = 15,134.78

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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.