Home / 18,766.14-28,140.93-9,999.18

Finding the Fourth Proportional to 18,766.14, 28,140.93 and 9,999.18

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Solution

The fourth proportional to 18,766.14, 28,140.93 and 9,999.18 is: 14,994.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,766.14 : 28,140.93 = 9,999.18 : x
  2. Step 2: Convert to fraction form
    18,766.14/28,140.93 = 9,999.18/x
  3. Step 3: Cross multiply
    18,766.14x = 28,140.93 × 9,999.18
  4. Step 4: Simplify right side
    18,766.14x = 281,386,224.44
  5. Step 5: Solve for x
    x = 281,386,224.44/18,766.14
  6. Step 6: Final answer
    x = 14,994.36

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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.