Home / 18,858.96-28,291.89-6,209.43

Finding the Fourth Proportional to 18,858.96, 28,291.89 and 6,209.43

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Solution

The fourth proportional to 18,858.96, 28,291.89 and 6,209.43 is: 9,315.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,858.96 : 28,291.89 = 6,209.43 : x
  2. Step 2: Convert to fraction form
    18,858.96/28,291.89 = 6,209.43/x
  3. Step 3: Cross multiply
    18,858.96x = 28,291.89 × 6,209.43
  4. Step 4: Simplify right side
    18,858.96x = 175,676,510.52
  5. Step 5: Solve for x
    x = 175,676,510.52/18,858.96
  6. Step 6: Final answer
    x = 9,315.28

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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.