Home / 13,316.86-19,966.02-6,738.54

Finding the Fourth Proportional to 13,316.86, 19,966.02 and 6,738.54

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Solution

The fourth proportional to 13,316.86, 19,966.02 and 6,738.54 is: 10,103.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.86 : 19,966.02 = 6,738.54 : x
  2. Step 2: Convert to fraction form
    13,316.86/19,966.02 = 6,738.54/x
  3. Step 3: Cross multiply
    13,316.86x = 19,966.02 × 6,738.54
  4. Step 4: Simplify right side
    13,316.86x = 134,541,855.53
  5. Step 5: Solve for x
    x = 134,541,855.53/13,316.86
  6. Step 6: Final answer
    x = 10,103.12

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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.