Home / 18,860.98-28,295.52-6,380.42

Finding the Fourth Proportional to 18,860.98, 28,295.52 and 6,380.42

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Solution

The fourth proportional to 18,860.98, 28,295.52 and 6,380.42 is: 9,572.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,860.98 : 28,295.52 = 6,380.42 : x
  2. Step 2: Convert to fraction form
    18,860.98/28,295.52 = 6,380.42/x
  3. Step 3: Cross multiply
    18,860.98x = 28,295.52 × 6,380.42
  4. Step 4: Simplify right side
    18,860.98x = 180,537,301.72
  5. Step 5: Solve for x
    x = 180,537,301.72/18,860.98
  6. Step 6: Final answer
    x = 9,572.00

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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.