Home / 8,858.50-12,223.66-5,081.47

Finding the Fourth Proportional to 8,858.50, 12,223.66 and 5,081.47

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Solution

The fourth proportional to 8,858.50, 12,223.66 and 5,081.47 is: 7,011.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858.50 : 12,223.66 = 5,081.47 : x
  2. Step 2: Convert to fraction form
    8,858.50/12,223.66 = 5,081.47/x
  3. Step 3: Cross multiply
    8,858.50x = 12,223.66 × 5,081.47
  4. Step 4: Simplify right side
    8,858.50x = 62,114,161.58
  5. Step 5: Solve for x
    x = 62,114,161.58/8,858.50
  6. Step 6: Final answer
    x = 7,011.81

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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.