Home / 14,080.16-21,125.76-5,317.44

Finding the Fourth Proportional to 14,080.16, 21,125.76 and 5,317.44

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Solution

The fourth proportional to 14,080.16, 21,125.76 and 5,317.44 is: 7,978.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,080.16 : 21,125.76 = 5,317.44 : x
  2. Step 2: Convert to fraction form
    14,080.16/21,125.76 = 5,317.44/x
  3. Step 3: Cross multiply
    14,080.16x = 21,125.76 × 5,317.44
  4. Step 4: Simplify right side
    14,080.16x = 112,334,961.25
  5. Step 5: Solve for x
    x = 112,334,961.25/14,080.16
  6. Step 6: Final answer
    x = 7,978.24

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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.