Home / 16,312.85-22,490.31-11,771.72

Finding the Fourth Proportional to 16,312.85, 22,490.31 and 11,771.72

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Solution

The fourth proportional to 16,312.85, 22,490.31 and 11,771.72 is: 16,229.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,312.85 : 22,490.31 = 11,771.72 : x
  2. Step 2: Convert to fraction form
    16,312.85/22,490.31 = 11,771.72/x
  3. Step 3: Cross multiply
    16,312.85x = 22,490.31 × 11,771.72
  4. Step 4: Simplify right side
    16,312.85x = 264,749,632.03
  5. Step 5: Solve for x
    x = 264,749,632.03/16,312.85
  6. Step 6: Final answer
    x = 16,229.51

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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.