Home / 14,080.86-21,121.29-5,647.14

Finding the Fourth Proportional to 14,080.86, 21,121.29 and 5,647.14

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Solution

The fourth proportional to 14,080.86, 21,121.29 and 5,647.14 is: 8,470.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,080.86 : 21,121.29 = 5,647.14 : x
  2. Step 2: Convert to fraction form
    14,080.86/21,121.29 = 5,647.14/x
  3. Step 3: Cross multiply
    14,080.86x = 21,121.29 × 5,647.14
  4. Step 4: Simplify right side
    14,080.86x = 119,274,881.61
  5. Step 5: Solve for x
    x = 119,274,881.61/14,080.86
  6. Step 6: Final answer
    x = 8,470.71

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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.