Home / 13,016.42-19,534.66-6,778

Finding the Fourth Proportional to 13,016.42, 19,534.66 and 6,778

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Solution

The fourth proportional to 13,016.42, 19,534.66 and 6,778 is: 10,172.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,016.42 : 19,534.66 = 6,778 : x
  2. Step 2: Convert to fraction form
    13,016.42/19,534.66 = 6,778/x
  3. Step 3: Cross multiply
    13,016.42x = 19,534.66 × 6,778
  4. Step 4: Simplify right side
    13,016.42x = 132,405,925.48
  5. Step 5: Solve for x
    x = 132,405,925.48/13,016.42
  6. Step 6: Final answer
    x = 10,172.22

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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.