Home / 21,660.90-32,493.51-7,806.66

Finding the Fourth Proportional to 21,660.90, 32,493.51 and 7,806.66

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Solution

The fourth proportional to 21,660.90, 32,493.51 and 7,806.66 is: 11,710.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,660.90 : 32,493.51 = 7,806.66 : x
  2. Step 2: Convert to fraction form
    21,660.90/32,493.51 = 7,806.66/x
  3. Step 3: Cross multiply
    21,660.90x = 32,493.51 × 7,806.66
  4. Step 4: Simplify right side
    21,660.90x = 253,665,784.78
  5. Step 5: Solve for x
    x = 253,665,784.78/21,660.90
  6. Step 6: Final answer
    x = 11,710.77

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1.5x scale

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.