Home / 14,820.66-20,472.48-11,857.68

Finding the Fourth Proportional to 14,820.66, 20,472.48 and 11,857.68

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Solution

The fourth proportional to 14,820.66, 20,472.48 and 11,857.68 is: 16,379.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,820.66 : 20,472.48 = 11,857.68 : x
  2. Step 2: Convert to fraction form
    14,820.66/20,472.48 = 11,857.68/x
  3. Step 3: Cross multiply
    14,820.66x = 20,472.48 × 11,857.68
  4. Step 4: Simplify right side
    14,820.66x = 242,756,116.65
  5. Step 5: Solve for x
    x = 242,756,116.65/14,820.66
  6. Step 6: Final answer
    x = 16,379.58

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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.