Home / 15,760.85-21,777.57-12,600.18

Finding the Fourth Proportional to 15,760.85, 21,777.57 and 12,600.18

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Solution

The fourth proportional to 15,760.85, 21,777.57 and 12,600.18 is: 17,410.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,760.85 : 21,777.57 = 12,600.18 : x
  2. Step 2: Convert to fraction form
    15,760.85/21,777.57 = 12,600.18/x
  3. Step 3: Cross multiply
    15,760.85x = 21,777.57 × 12,600.18
  4. Step 4: Simplify right side
    15,760.85x = 274,401,301.96
  5. Step 5: Solve for x
    x = 274,401,301.96/15,760.85
  6. Step 6: Final answer
    x = 17,410.32

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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.