Home / 14,080.74-21,121.11-4,720.02

Finding the Fourth Proportional to 14,080.74, 21,121.11 and 4,720.02

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Solution

The fourth proportional to 14,080.74, 21,121.11 and 4,720.02 is: 7,080.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,080.74 : 21,121.11 = 4,720.02 : x
  2. Step 2: Convert to fraction form
    14,080.74/21,121.11 = 4,720.02/x
  3. Step 3: Cross multiply
    14,080.74x = 21,121.11 × 4,720.02
  4. Step 4: Simplify right side
    14,080.74x = 99,692,061.62
  5. Step 5: Solve for x
    x = 99,692,061.62/14,080.74
  6. Step 6: Final answer
    x = 7,080.03

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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.