Home / 14,059.20-21,090.60-5,175.12

Finding the Fourth Proportional to 14,059.20, 21,090.60 and 5,175.12

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Solution

The fourth proportional to 14,059.20, 21,090.60 and 5,175.12 is: 7,763.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,059.20 : 21,090.60 = 5,175.12 : x
  2. Step 2: Convert to fraction form
    14,059.20/21,090.60 = 5,175.12/x
  3. Step 3: Cross multiply
    14,059.20x = 21,090.60 × 5,175.12
  4. Step 4: Simplify right side
    14,059.20x = 109,146,385.87
  5. Step 5: Solve for x
    x = 109,146,385.87/14,059.20
  6. Step 6: Final answer
    x = 7,763.34

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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.