Home / 14,674.72-20,249.04-8,385.76

Finding the Fourth Proportional to 14,674.72, 20,249.04 and 8,385.76

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Solution

The fourth proportional to 14,674.72, 20,249.04 and 8,385.76 is: 11,571.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,674.72 : 20,249.04 = 8,385.76 : x
  2. Step 2: Convert to fraction form
    14,674.72/20,249.04 = 8,385.76/x
  3. Step 3: Cross multiply
    14,674.72x = 20,249.04 × 8,385.76
  4. Step 4: Simplify right side
    14,674.72x = 169,803,589.67
  5. Step 5: Solve for x
    x = 169,803,589.67/14,674.72
  6. Step 6: Final answer
    x = 11,571.16

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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.