Home / 21,764.10-32,660.74-7,913.10

Finding the Fourth Proportional to 21,764.10, 32,660.74 and 7,913.10

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Solution

The fourth proportional to 21,764.10, 32,660.74 and 7,913.10 is: 11,874.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,764.10 : 32,660.74 = 7,913.10 : x
  2. Step 2: Convert to fraction form
    21,764.10/32,660.74 = 7,913.10/x
  3. Step 3: Cross multiply
    21,764.10x = 32,660.74 × 7,913.10
  4. Step 4: Simplify right side
    21,764.10x = 258,447,701.69
  5. Step 5: Solve for x
    x = 258,447,701.69/21,764.10
  6. Step 6: Final answer
    x = 11,874.95

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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.