Home / 14,089.42-21,121.17-5,317.66

Finding the Fourth Proportional to 14,089.42, 21,121.17 and 5,317.66

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Solution

The fourth proportional to 14,089.42, 21,121.17 and 5,317.66 is: 7,971.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,089.42 : 21,121.17 = 5,317.66 : x
  2. Step 2: Convert to fraction form
    14,089.42/21,121.17 = 5,317.66/x
  3. Step 3: Cross multiply
    14,089.42x = 21,121.17 × 5,317.66
  4. Step 4: Simplify right side
    14,089.42x = 112,315,200.86
  5. Step 5: Solve for x
    x = 112,315,200.86/14,089.42
  6. Step 6: Final answer
    x = 7,971.60

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1.5x scale

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.