Home / 10,090.64-15,135.60-3,516.80

Finding the Fourth Proportional to 10,090.64, 15,135.60 and 3,516.80

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Solution

The fourth proportional to 10,090.64, 15,135.60 and 3,516.80 is: 5,275.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,090.64 : 15,135.60 = 3,516.80 : x
  2. Step 2: Convert to fraction form
    10,090.64/15,135.60 = 3,516.80/x
  3. Step 3: Cross multiply
    10,090.64x = 15,135.60 × 3,516.80
  4. Step 4: Simplify right side
    10,090.64x = 53,228,878.08
  5. Step 5: Solve for x
    x = 53,228,878.08/10,090.64
  6. Step 6: Final answer
    x = 5,275.07

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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.