Home / 13,280.42-19,913.25-6,156.87

Finding the Fourth Proportional to 13,280.42, 19,913.25 and 6,156.87

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Solution

The fourth proportional to 13,280.42, 19,913.25 and 6,156.87 is: 9,231.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280.42 : 19,913.25 = 6,156.87 : x
  2. Step 2: Convert to fraction form
    13,280.42/19,913.25 = 6,156.87/x
  3. Step 3: Cross multiply
    13,280.42x = 19,913.25 × 6,156.87
  4. Step 4: Simplify right side
    13,280.42x = 122,603,291.53
  5. Step 5: Solve for x
    x = 122,603,291.53/13,280.42
  6. Step 6: Final answer
    x = 9,231.89

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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.