Home / 18,922.80-28,401.72-9,569.44

Finding the Fourth Proportional to 18,922.80, 28,401.72 and 9,569.44

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Solution

The fourth proportional to 18,922.80, 28,401.72 and 9,569.44 is: 14,363.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,922.80 : 28,401.72 = 9,569.44 : x
  2. Step 2: Convert to fraction form
    18,922.80/28,401.72 = 9,569.44/x
  3. Step 3: Cross multiply
    18,922.80x = 28,401.72 × 9,569.44
  4. Step 4: Simplify right side
    18,922.80x = 271,788,555.44
  5. Step 5: Solve for x
    x = 271,788,555.44/18,922.80
  6. Step 6: Final answer
    x = 14,363.02

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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.