Home / 18,135.44-27,200.28-7,047.20

Finding the Fourth Proportional to 18,135.44, 27,200.28 and 7,047.20

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Solution

The fourth proportional to 18,135.44, 27,200.28 and 7,047.20 is: 10,569.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,135.44 : 27,200.28 = 7,047.20 : x
  2. Step 2: Convert to fraction form
    18,135.44/27,200.28 = 7,047.20/x
  3. Step 3: Cross multiply
    18,135.44x = 27,200.28 × 7,047.20
  4. Step 4: Simplify right side
    18,135.44x = 191,685,813.22
  5. Step 5: Solve for x
    x = 191,685,813.22/18,135.44
  6. Step 6: Final answer
    x = 10,569.68

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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.