Home / 14,074.62-21,117.51-5,311.86

Finding the Fourth Proportional to 14,074.62, 21,117.51 and 5,311.86

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Solution

The fourth proportional to 14,074.62, 21,117.51 and 5,311.86 is: 7,969.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,074.62 : 21,117.51 = 5,311.86 : x
  2. Step 2: Convert to fraction form
    14,074.62/21,117.51 = 5,311.86/x
  3. Step 3: Cross multiply
    14,074.62x = 21,117.51 × 5,311.86
  4. Step 4: Simplify right side
    14,074.62x = 112,173,256.67
  5. Step 5: Solve for x
    x = 112,173,256.67/14,074.62
  6. Step 6: Final answer
    x = 7,969.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.