Home / 18,941.18-28,400.42-7,841.34

Finding the Fourth Proportional to 18,941.18, 28,400.42 and 7,841.34

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Solution

The fourth proportional to 18,941.18, 28,400.42 and 7,841.34 is: 11,757.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,941.18 : 28,400.42 = 7,841.34 : x
  2. Step 2: Convert to fraction form
    18,941.18/28,400.42 = 7,841.34/x
  3. Step 3: Cross multiply
    18,941.18x = 28,400.42 × 7,841.34
  4. Step 4: Simplify right side
    18,941.18x = 222,697,368.97
  5. Step 5: Solve for x
    x = 222,697,368.97/18,941.18
  6. Step 6: Final answer
    x = 11,757.32

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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.