Home / 8,675.19-11,971.67-5,138.46

Finding the Fourth Proportional to 8,675.19, 11,971.67 and 5,138.46

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Solution

The fourth proportional to 8,675.19, 11,971.67 and 5,138.46 is: 7,091.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,675.19 : 11,971.67 = 5,138.46 : x
  2. Step 2: Convert to fraction form
    8,675.19/11,971.67 = 5,138.46/x
  3. Step 3: Cross multiply
    8,675.19x = 11,971.67 × 5,138.46
  4. Step 4: Simplify right side
    8,675.19x = 61,515,921.74
  5. Step 5: Solve for x
    x = 61,515,921.74/8,675.19
  6. Step 6: Final answer
    x = 7,091.02

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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.