Home / 18,966.82-28,444.96-5,642.74

Finding the Fourth Proportional to 18,966.82, 28,444.96 and 5,642.74

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Solution

The fourth proportional to 18,966.82, 28,444.96 and 5,642.74 is: 8,462.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,966.82 : 28,444.96 = 5,642.74 : x
  2. Step 2: Convert to fraction form
    18,966.82/28,444.96 = 5,642.74/x
  3. Step 3: Cross multiply
    18,966.82x = 28,444.96 × 5,642.74
  4. Step 4: Simplify right side
    18,966.82x = 160,507,513.59
  5. Step 5: Solve for x
    x = 160,507,513.59/18,966.82
  6. Step 6: Final answer
    x = 8,462.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.