Home / 18,139.56-27,209.34-4,993.32

Finding the Fourth Proportional to 18,139.56, 27,209.34 and 4,993.32

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Solution

The fourth proportional to 18,139.56, 27,209.34 and 4,993.32 is: 7,489.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139.56 : 27,209.34 = 4,993.32 : x
  2. Step 2: Convert to fraction form
    18,139.56/27,209.34 = 4,993.32/x
  3. Step 3: Cross multiply
    18,139.56x = 27,209.34 × 4,993.32
  4. Step 4: Simplify right side
    18,139.56x = 135,864,941.61
  5. Step 5: Solve for x
    x = 135,864,941.61/18,139.56
  6. Step 6: Final answer
    x = 7,489.98

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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.