Home / 18,456.10-27,688.20-9,100.60

Finding the Fourth Proportional to 18,456.10, 27,688.20 and 9,100.60

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Solution

The fourth proportional to 18,456.10, 27,688.20 and 9,100.60 is: 13,652.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,456.10 : 27,688.20 = 9,100.60 : x
  2. Step 2: Convert to fraction form
    18,456.10/27,688.20 = 9,100.60/x
  3. Step 3: Cross multiply
    18,456.10x = 27,688.20 × 9,100.60
  4. Step 4: Simplify right side
    18,456.10x = 251,979,232.92
  5. Step 5: Solve for x
    x = 251,979,232.92/18,456.10
  6. Step 6: Final answer
    x = 13,652.90

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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.