Home / 14,935.86-20,612.85-8,222.85

Finding the Fourth Proportional to 14,935.86, 20,612.85 and 8,222.85

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Solution

The fourth proportional to 14,935.86, 20,612.85 and 8,222.85 is: 11,348.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,935.86 : 20,612.85 = 8,222.85 : x
  2. Step 2: Convert to fraction form
    14,935.86/20,612.85 = 8,222.85/x
  3. Step 3: Cross multiply
    14,935.86x = 20,612.85 × 8,222.85
  4. Step 4: Simplify right side
    14,935.86x = 169,496,373.62
  5. Step 5: Solve for x
    x = 169,496,373.62/14,935.86
  6. Step 6: Final answer
    x = 11,348.28

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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.