Home / 18,090.10-27,139.20-5,610.70

Finding the Fourth Proportional to 18,090.10, 27,139.20 and 5,610.70

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Solution

The fourth proportional to 18,090.10, 27,139.20 and 5,610.70 is: 8,417.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,090.10 : 27,139.20 = 5,610.70 : x
  2. Step 2: Convert to fraction form
    18,090.10/27,139.20 = 5,610.70/x
  3. Step 3: Cross multiply
    18,090.10x = 27,139.20 × 5,610.70
  4. Step 4: Simplify right side
    18,090.10x = 152,269,909.44
  5. Step 5: Solve for x
    x = 152,269,909.44/18,090.10
  6. Step 6: Final answer
    x = 8,417.31

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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.