Home / 19,660.56-27,132.36-11,278.68

Finding the Fourth Proportional to 19,660.56, 27,132.36 and 11,278.68

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Solution

The fourth proportional to 19,660.56, 27,132.36 and 11,278.68 is: 15,565.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,660.56 : 27,132.36 = 11,278.68 : x
  2. Step 2: Convert to fraction form
    19,660.56/27,132.36 = 11,278.68/x
  3. Step 3: Cross multiply
    19,660.56x = 27,132.36 × 11,278.68
  4. Step 4: Simplify right side
    19,660.56x = 306,017,206.08
  5. Step 5: Solve for x
    x = 306,017,206.08/19,660.56
  6. Step 6: Final answer
    x = 15,565.03

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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.