Home / 8,340.33-11,511.20-5,359.89

Finding the Fourth Proportional to 8,340.33, 11,511.20 and 5,359.89

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Solution

The fourth proportional to 8,340.33, 11,511.20 and 5,359.89 is: 7,397.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,340.33 : 11,511.20 = 5,359.89 : x
  2. Step 2: Convert to fraction form
    8,340.33/11,511.20 = 5,359.89/x
  3. Step 3: Cross multiply
    8,340.33x = 11,511.20 × 5,359.89
  4. Step 4: Simplify right side
    8,340.33x = 61,698,765.77
  5. Step 5: Solve for x
    x = 61,698,765.77/8,340.33
  6. Step 6: Final answer
    x = 7,397.64

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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.