Home / 10,121.96-15,185.18-4,858.76

Finding the Fourth Proportional to 10,121.96, 15,185.18 and 4,858.76

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Solution

The fourth proportional to 10,121.96, 15,185.18 and 4,858.76 is: 7,289.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,121.96 : 15,185.18 = 4,858.76 : x
  2. Step 2: Convert to fraction form
    10,121.96/15,185.18 = 4,858.76/x
  3. Step 3: Cross multiply
    10,121.96x = 15,185.18 × 4,858.76
  4. Step 4: Simplify right side
    10,121.96x = 73,781,145.18
  5. Step 5: Solve for x
    x = 73,781,145.18/10,121.96
  6. Step 6: Final answer
    x = 7,289.22

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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.