Home / 10,125.91-13,975.44-7,731.96

Finding the Fourth Proportional to 10,125.91, 13,975.44 and 7,731.96

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Solution

The fourth proportional to 10,125.91, 13,975.44 and 7,731.96 is: 10,671.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,125.91 : 13,975.44 = 7,731.96 : x
  2. Step 2: Convert to fraction form
    10,125.91/13,975.44 = 7,731.96/x
  3. Step 3: Cross multiply
    10,125.91x = 13,975.44 × 7,731.96
  4. Step 4: Simplify right side
    10,125.91x = 108,057,461.66
  5. Step 5: Solve for x
    x = 108,057,461.66/10,125.91
  6. Step 6: Final answer
    x = 10,671.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.