Home / 10,157.47-15,236.21-2,761.77

Finding the Fourth Proportional to 10,157.47, 15,236.21 and 2,761.77

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Solution

The fourth proportional to 10,157.47, 15,236.21 and 2,761.77 is: 4,142.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,157.47 : 15,236.21 = 2,761.77 : x
  2. Step 2: Convert to fraction form
    10,157.47/15,236.21 = 2,761.77/x
  3. Step 3: Cross multiply
    10,157.47x = 15,236.21 × 2,761.77
  4. Step 4: Simplify right side
    10,157.47x = 42,078,907.69
  5. Step 5: Solve for x
    x = 42,078,907.69/10,157.47
  6. Step 6: Final answer
    x = 4,142.66

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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.