Home / 18,099.53-27,132.59-12,555.49

Finding the Fourth Proportional to 18,099.53, 27,132.59 and 12,555.49

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Solution

The fourth proportional to 18,099.53, 27,132.59 and 12,555.49 is: 18,821.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,099.53 : 27,132.59 = 12,555.49 : x
  2. Step 2: Convert to fraction form
    18,099.53/27,132.59 = 12,555.49/x
  3. Step 3: Cross multiply
    18,099.53x = 27,132.59 × 12,555.49
  4. Step 4: Simplify right side
    18,099.53x = 340,662,962.42
  5. Step 5: Solve for x
    x = 340,662,962.42/18,099.53
  6. Step 6: Final answer
    x = 18,821.65

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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.