Home / 14,963.73-20,642.35-11,420.79

Finding the Fourth Proportional to 14,963.73, 20,642.35 and 11,420.79

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Solution

The fourth proportional to 14,963.73, 20,642.35 and 11,420.79 is: 15,754.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,963.73 : 20,642.35 = 11,420.79 : x
  2. Step 2: Convert to fraction form
    14,963.73/20,642.35 = 11,420.79/x
  3. Step 3: Cross multiply
    14,963.73x = 20,642.35 × 11,420.79
  4. Step 4: Simplify right side
    14,963.73x = 235,751,944.46
  5. Step 5: Solve for x
    x = 235,751,944.46/14,963.73
  6. Step 6: Final answer
    x = 15,754.89

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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.