Home / 16,235.85-22,407.32-9,161.72

Finding the Fourth Proportional to 16,235.85, 22,407.32 and 9,161.72

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Solution

The fourth proportional to 16,235.85, 22,407.32 and 9,161.72 is: 12,644.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,235.85 : 22,407.32 = 9,161.72 : x
  2. Step 2: Convert to fraction form
    16,235.85/22,407.32 = 9,161.72/x
  3. Step 3: Cross multiply
    16,235.85x = 22,407.32 × 9,161.72
  4. Step 4: Simplify right side
    16,235.85x = 205,289,586.69
  5. Step 5: Solve for x
    x = 205,289,586.69/16,235.85
  6. Step 6: Final answer
    x = 12,644.21

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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.