Home / 18,657.53-27,989.01-5,508.18

Finding the Fourth Proportional to 18,657.53, 27,989.01 and 5,508.18

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Solution

The fourth proportional to 18,657.53, 27,989.01 and 5,508.18 is: 8,263.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,657.53 : 27,989.01 = 5,508.18 : x
  2. Step 2: Convert to fraction form
    18,657.53/27,989.01 = 5,508.18/x
  3. Step 3: Cross multiply
    18,657.53x = 27,989.01 × 5,508.18
  4. Step 4: Simplify right side
    18,657.53x = 154,168,505.10
  5. Step 5: Solve for x
    x = 154,168,505.10/18,657.53
  6. Step 6: Final answer
    x = 8,263.07

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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.