Home / 10,126.89-13,975.45-5,650.83

Finding the Fourth Proportional to 10,126.89, 13,975.45 and 5,650.83

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Solution

The fourth proportional to 10,126.89, 13,975.45 and 5,650.83 is: 7,798.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,126.89 : 13,975.45 = 5,650.83 : x
  2. Step 2: Convert to fraction form
    10,126.89/13,975.45 = 5,650.83/x
  3. Step 3: Cross multiply
    10,126.89x = 13,975.45 × 5,650.83
  4. Step 4: Simplify right side
    10,126.89x = 78,972,878.00
  5. Step 5: Solve for x
    x = 78,972,878.00/10,126.89
  6. Step 6: Final answer
    x = 7,798.33

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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.