Home / 10,542.15-15,813.63-2,750.76

Finding the Fourth Proportional to 10,542.15, 15,813.63 and 2,750.76

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Solution

The fourth proportional to 10,542.15, 15,813.63 and 2,750.76 is: 4,126.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,542.15 : 15,813.63 = 2,750.76 : x
  2. Step 2: Convert to fraction form
    10,542.15/15,813.63 = 2,750.76/x
  3. Step 3: Cross multiply
    10,542.15x = 15,813.63 × 2,750.76
  4. Step 4: Simplify right side
    10,542.15x = 43,499,500.86
  5. Step 5: Solve for x
    x = 43,499,500.86/10,542.15
  6. Step 6: Final answer
    x = 4,126.25

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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.