Home / 18,135.18-27,202.74-5,656.20

Finding the Fourth Proportional to 18,135.18, 27,202.74 and 5,656.20

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Solution

The fourth proportional to 18,135.18, 27,202.74 and 5,656.20 is: 8,484.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,135.18 : 27,202.74 = 5,656.20 : x
  2. Step 2: Convert to fraction form
    18,135.18/27,202.74 = 5,656.20/x
  3. Step 3: Cross multiply
    18,135.18x = 27,202.74 × 5,656.20
  4. Step 4: Simplify right side
    18,135.18x = 153,864,137.99
  5. Step 5: Solve for x
    x = 153,864,137.99/18,135.18
  6. Step 6: Final answer
    x = 8,484.29

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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.