Home / 18,989.98-28,488.20-5,842.06

Finding the Fourth Proportional to 18,989.98, 28,488.20 and 5,842.06

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Solution

The fourth proportional to 18,989.98, 28,488.20 and 5,842.06 is: 8,764.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,989.98 : 28,488.20 = 5,842.06 : x
  2. Step 2: Convert to fraction form
    18,989.98/28,488.20 = 5,842.06/x
  3. Step 3: Cross multiply
    18,989.98x = 28,488.20 × 5,842.06
  4. Step 4: Simplify right side
    18,989.98x = 166,429,773.69
  5. Step 5: Solve for x
    x = 166,429,773.69/18,989.98
  6. Step 6: Final answer
    x = 8,764.08

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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.