Home / 10,517.31-15,775.58-4,277.15

Finding the Fourth Proportional to 10,517.31, 15,775.58 and 4,277.15

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Solution

The fourth proportional to 10,517.31, 15,775.58 and 4,277.15 is: 6,415.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,517.31 : 15,775.58 = 4,277.15 : x
  2. Step 2: Convert to fraction form
    10,517.31/15,775.58 = 4,277.15/x
  3. Step 3: Cross multiply
    10,517.31x = 15,775.58 × 4,277.15
  4. Step 4: Simplify right side
    10,517.31x = 67,474,453.81
  5. Step 5: Solve for x
    x = 67,474,453.81/10,517.31
  6. Step 6: Final answer
    x = 6,415.56

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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.