Home / 8,112.81-11,195.69-4,386.81

Finding the Fourth Proportional to 8,112.81, 11,195.69 and 4,386.81

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Solution

The fourth proportional to 8,112.81, 11,195.69 and 4,386.81 is: 6,053.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112.81 : 11,195.69 = 4,386.81 : x
  2. Step 2: Convert to fraction form
    8,112.81/11,195.69 = 4,386.81/x
  3. Step 3: Cross multiply
    8,112.81x = 11,195.69 × 4,386.81
  4. Step 4: Simplify right side
    8,112.81x = 49,113,364.85
  5. Step 5: Solve for x
    x = 49,113,364.85/8,112.81
  6. Step 6: Final answer
    x = 6,053.80

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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.