Home / 13,228.76-19,836.60-6,557.60

Finding the Fourth Proportional to 13,228.76, 19,836.60 and 6,557.60

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Solution

The fourth proportional to 13,228.76, 19,836.60 and 6,557.60 is: 9,833.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,228.76 : 19,836.60 = 6,557.60 : x
  2. Step 2: Convert to fraction form
    13,228.76/19,836.60 = 6,557.60/x
  3. Step 3: Cross multiply
    13,228.76x = 19,836.60 × 6,557.60
  4. Step 4: Simplify right side
    13,228.76x = 130,080,388.98
  5. Step 5: Solve for x
    x = 130,080,388.98/13,228.76
  6. Step 6: Final answer
    x = 9,833.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.