Home / 8,631.48-11,908.06-4,853.78

Finding the Fourth Proportional to 8,631.48, 11,908.06 and 4,853.78

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Solution

The fourth proportional to 8,631.48, 11,908.06 and 4,853.78 is: 6,696.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,631.48 : 11,908.06 = 4,853.78 : x
  2. Step 2: Convert to fraction form
    8,631.48/11,908.06 = 4,853.78/x
  3. Step 3: Cross multiply
    8,631.48x = 11,908.06 × 4,853.78
  4. Step 4: Simplify right side
    8,631.48x = 57,799,103.47
  5. Step 5: Solve for x
    x = 57,799,103.47/8,631.48
  6. Step 6: Final answer
    x = 6,696.31

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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.