Home / 19,156.62-28,731.87-9,803.55

Finding the Fourth Proportional to 19,156.62, 28,731.87 and 9,803.55

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Solution

The fourth proportional to 19,156.62, 28,731.87 and 9,803.55 is: 14,703.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,156.62 : 28,731.87 = 9,803.55 : x
  2. Step 2: Convert to fraction form
    19,156.62/28,731.87 = 9,803.55/x
  3. Step 3: Cross multiply
    19,156.62x = 28,731.87 × 9,803.55
  4. Step 4: Simplify right side
    19,156.62x = 281,674,324.14
  5. Step 5: Solve for x
    x = 281,674,324.14/19,156.62
  6. Step 6: Final answer
    x = 14,703.76

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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.