Home / 18,740.20-28,110.30-7,056.04

Finding the Fourth Proportional to 18,740.20, 28,110.30 and 7,056.04

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Solution

The fourth proportional to 18,740.20, 28,110.30 and 7,056.04 is: 10,584.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,740.20 : 28,110.30 = 7,056.04 : x
  2. Step 2: Convert to fraction form
    18,740.20/28,110.30 = 7,056.04/x
  3. Step 3: Cross multiply
    18,740.20x = 28,110.30 × 7,056.04
  4. Step 4: Simplify right side
    18,740.20x = 198,347,401.21
  5. Step 5: Solve for x
    x = 198,347,401.21/18,740.20
  6. Step 6: Final answer
    x = 10,584.06

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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.