Home / 14,638.45-21,961.19-4,777.75

Finding the Fourth Proportional to 14,638.45, 21,961.19 and 4,777.75

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Solution

The fourth proportional to 14,638.45, 21,961.19 and 4,777.75 is: 7,167.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,638.45 : 21,961.19 = 4,777.75 : x
  2. Step 2: Convert to fraction form
    14,638.45/21,961.19 = 4,777.75/x
  3. Step 3: Cross multiply
    14,638.45x = 21,961.19 × 4,777.75
  4. Step 4: Simplify right side
    14,638.45x = 104,925,075.52
  5. Step 5: Solve for x
    x = 104,925,075.52/14,638.45
  6. Step 6: Final answer
    x = 7,167.77

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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.