Home / 14,515.90-21,775.78-4,651.90

Finding the Fourth Proportional to 14,515.90, 21,775.78 and 4,651.90

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Solution

The fourth proportional to 14,515.90, 21,775.78 and 4,651.90 is: 6,978.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,515.90 : 21,775.78 = 4,651.90 : x
  2. Step 2: Convert to fraction form
    14,515.90/21,775.78 = 4,651.90/x
  3. Step 3: Cross multiply
    14,515.90x = 21,775.78 × 4,651.90
  4. Step 4: Simplify right side
    14,515.90x = 101,298,750.98
  5. Step 5: Solve for x
    x = 101,298,750.98/14,515.90
  6. Step 6: Final answer
    x = 6,978.47

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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.