Home / 10,505.57-15,752.75-3,108.92

Finding the Fourth Proportional to 10,505.57, 15,752.75 and 3,108.92

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Solution

The fourth proportional to 10,505.57, 15,752.75 and 3,108.92 is: 4,661.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,505.57 : 15,752.75 = 3,108.92 : x
  2. Step 2: Convert to fraction form
    10,505.57/15,752.75 = 3,108.92/x
  3. Step 3: Cross multiply
    10,505.57x = 15,752.75 × 3,108.92
  4. Step 4: Simplify right side
    10,505.57x = 48,973,945.22
  5. Step 5: Solve for x
    x = 48,973,945.22/10,505.57
  6. Step 6: Final answer
    x = 4,661.71

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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.