Home / 12,731.27-19,099.02-5,336.28

Finding the Fourth Proportional to 12,731.27, 19,099.02 and 5,336.28

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Solution

The fourth proportional to 12,731.27, 19,099.02 and 5,336.28 is: 8,005.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,731.27 : 19,099.02 = 5,336.28 : x
  2. Step 2: Convert to fraction form
    12,731.27/19,099.02 = 5,336.28/x
  3. Step 3: Cross multiply
    12,731.27x = 19,099.02 × 5,336.28
  4. Step 4: Simplify right side
    12,731.27x = 101,917,718.45
  5. Step 5: Solve for x
    x = 101,917,718.45/12,731.27
  6. Step 6: Final answer
    x = 8,005.31

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1.5x scale

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.