Home / 18,740.46-28,113.74-8,755.19

Finding the Fourth Proportional to 18,740.46, 28,113.74 and 8,755.19

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Solution

The fourth proportional to 18,740.46, 28,113.74 and 8,755.19 is: 13,134.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,740.46 : 28,113.74 = 8,755.19 : x
  2. Step 2: Convert to fraction form
    18,740.46/28,113.74 = 8,755.19/x
  3. Step 3: Cross multiply
    18,740.46x = 28,113.74 × 8,755.19
  4. Step 4: Simplify right side
    18,740.46x = 246,141,135.31
  5. Step 5: Solve for x
    x = 246,141,135.31/18,740.46
  6. Step 6: Final answer
    x = 13,134.21

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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.