Home / 18,707.40-28,066.68-5,560.20

Finding the Fourth Proportional to 18,707.40, 28,066.68 and 5,560.20

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Solution

The fourth proportional to 18,707.40, 28,066.68 and 5,560.20 is: 8,341.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,707.40 : 28,066.68 = 5,560.20 : x
  2. Step 2: Convert to fraction form
    18,707.40/28,066.68 = 5,560.20/x
  3. Step 3: Cross multiply
    18,707.40x = 28,066.68 × 5,560.20
  4. Step 4: Simplify right side
    18,707.40x = 156,056,354.14
  5. Step 5: Solve for x
    x = 156,056,354.14/18,707.40
  6. Step 6: Final answer
    x = 8,341.96

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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.