Home / 19,803.05-29,704.61-8,124.47

Finding the Fourth Proportional to 19,803.05, 29,704.61 and 8,124.47

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Solution

The fourth proportional to 19,803.05, 29,704.61 and 8,124.47 is: 12,186.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,803.05 : 29,704.61 = 8,124.47 : x
  2. Step 2: Convert to fraction form
    19,803.05/29,704.61 = 8,124.47/x
  3. Step 3: Cross multiply
    19,803.05x = 29,704.61 × 8,124.47
  4. Step 4: Simplify right side
    19,803.05x = 241,334,212.81
  5. Step 5: Solve for x
    x = 241,334,212.81/19,803.05
  6. Step 6: Final answer
    x = 12,186.72

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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.