Home / 10,211.78-14,091.90-6,239.54

Finding the Fourth Proportional to 10,211.78, 14,091.90 and 6,239.54

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Solution

The fourth proportional to 10,211.78, 14,091.90 and 6,239.54 is: 8,610.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,211.78 : 14,091.90 = 6,239.54 : x
  2. Step 2: Convert to fraction form
    10,211.78/14,091.90 = 6,239.54/x
  3. Step 3: Cross multiply
    10,211.78x = 14,091.90 × 6,239.54
  4. Step 4: Simplify right side
    10,211.78x = 87,926,973.73
  5. Step 5: Solve for x
    x = 87,926,973.73/10,211.78
  6. Step 6: Final answer
    x = 8,610.35

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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.