Home / 8,214.47-11,342.61-7,801.67

Finding the Fourth Proportional to 8,214.47, 11,342.61 and 7,801.67

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Solution

The fourth proportional to 8,214.47, 11,342.61 and 7,801.67 is: 10,772.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,214.47 : 11,342.61 = 7,801.67 : x
  2. Step 2: Convert to fraction form
    8,214.47/11,342.61 = 7,801.67/x
  3. Step 3: Cross multiply
    8,214.47x = 11,342.61 × 7,801.67
  4. Step 4: Simplify right side
    8,214.47x = 88,491,300.16
  5. Step 5: Solve for x
    x = 88,491,300.16/8,214.47
  6. Step 6: Final answer
    x = 10,772.61

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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.