Home / 10,057.31-15,090.83-4,138.56

Finding the Fourth Proportional to 10,057.31, 15,090.83 and 4,138.56

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Solution

The fourth proportional to 10,057.31, 15,090.83 and 4,138.56 is: 6,209.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,057.31 : 15,090.83 = 4,138.56 : x
  2. Step 2: Convert to fraction form
    10,057.31/15,090.83 = 4,138.56/x
  3. Step 3: Cross multiply
    10,057.31x = 15,090.83 × 4,138.56
  4. Step 4: Simplify right side
    10,057.31x = 62,454,284.71
  5. Step 5: Solve for x
    x = 62,454,284.71/10,057.31
  6. Step 6: Final answer
    x = 6,209.84

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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.