Home / 14,718.80-20,311.44-8,429.96

Finding the Fourth Proportional to 14,718.80, 20,311.44 and 8,429.96

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Solution

The fourth proportional to 14,718.80, 20,311.44 and 8,429.96 is: 11,633.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,718.80 : 20,311.44 = 8,429.96 : x
  2. Step 2: Convert to fraction form
    14,718.80/20,311.44 = 8,429.96/x
  3. Step 3: Cross multiply
    14,718.80x = 20,311.44 × 8,429.96
  4. Step 4: Simplify right side
    14,718.80x = 171,224,626.74
  5. Step 5: Solve for x
    x = 171,224,626.74/14,718.80
  6. Step 6: Final answer
    x = 11,633.06

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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.