Home / 12,531.55-18,797.28-5,136.01

Finding the Fourth Proportional to 12,531.55, 18,797.28 and 5,136.01

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Solution

The fourth proportional to 12,531.55, 18,797.28 and 5,136.01 is: 7,704.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,531.55 : 18,797.28 = 5,136.01 : x
  2. Step 2: Convert to fraction form
    12,531.55/18,797.28 = 5,136.01/x
  3. Step 3: Cross multiply
    12,531.55x = 18,797.28 × 5,136.01
  4. Step 4: Simplify right side
    12,531.55x = 96,543,018.05
  5. Step 5: Solve for x
    x = 96,543,018.05/12,531.55
  6. Step 6: Final answer
    x = 7,704.00

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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.