Home / 18,077.29-27,113.37-6,989.20

Finding the Fourth Proportional to 18,077.29, 27,113.37 and 6,989.20

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Solution

The fourth proportional to 18,077.29, 27,113.37 and 6,989.20 is: 10,482.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,077.29 : 27,113.37 = 6,989.20 : x
  2. Step 2: Convert to fraction form
    18,077.29/27,113.37 = 6,989.20/x
  3. Step 3: Cross multiply
    18,077.29x = 27,113.37 × 6,989.20
  4. Step 4: Simplify right side
    18,077.29x = 189,500,765.60
  5. Step 5: Solve for x
    x = 189,500,765.60/18,077.29
  6. Step 6: Final answer
    x = 10,482.81

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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.