Home / 12,731.78-19,094.02-4,409.64

Finding the Fourth Proportional to 12,731.78, 19,094.02 and 4,409.64

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Solution

The fourth proportional to 12,731.78, 19,094.02 and 4,409.64 is: 6,613.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,731.78 : 19,094.02 = 4,409.64 : x
  2. Step 2: Convert to fraction form
    12,731.78/19,094.02 = 4,409.64/x
  3. Step 3: Cross multiply
    12,731.78x = 19,094.02 × 4,409.64
  4. Step 4: Simplify right side
    12,731.78x = 84,197,754.35
  5. Step 5: Solve for x
    x = 84,197,754.35/12,731.78
  6. Step 6: Final answer
    x = 6,613.20

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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.