Home / 18,877.11-28,315.73-5,729.46

Finding the Fourth Proportional to 18,877.11, 28,315.73 and 5,729.46

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Solution

The fourth proportional to 18,877.11, 28,315.73 and 5,729.46 is: 8,594.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,877.11 : 28,315.73 = 5,729.46 : x
  2. Step 2: Convert to fraction form
    18,877.11/28,315.73 = 5,729.46/x
  3. Step 3: Cross multiply
    18,877.11x = 28,315.73 × 5,729.46
  4. Step 4: Simplify right side
    18,877.11x = 162,233,842.41
  5. Step 5: Solve for x
    x = 162,233,842.41/18,877.11
  6. Step 6: Final answer
    x = 8,594.21

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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.