Home / 21,124.11-29,150.84-11,563.76

Finding the Fourth Proportional to 21,124.11, 29,150.84 and 11,563.76

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Solution

The fourth proportional to 21,124.11, 29,150.84 and 11,563.76 is: 15,957.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,124.11 : 29,150.84 = 11,563.76 : x
  2. Step 2: Convert to fraction form
    21,124.11/29,150.84 = 11,563.76/x
  3. Step 3: Cross multiply
    21,124.11x = 29,150.84 × 11,563.76
  4. Step 4: Simplify right side
    21,124.11x = 337,093,113.99
  5. Step 5: Solve for x
    x = 337,093,113.99/21,124.11
  6. Step 6: Final answer
    x = 15,957.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.