Home / 15,823.64-23,704.16-12,865.39

Finding the Fourth Proportional to 15,823.64, 23,704.16 and 12,865.39

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Solution

The fourth proportional to 15,823.64, 23,704.16 and 12,865.39 is: 19,272.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,823.64 : 23,704.16 = 12,865.39 : x
  2. Step 2: Convert to fraction form
    15,823.64/23,704.16 = 12,865.39/x
  3. Step 3: Cross multiply
    15,823.64x = 23,704.16 × 12,865.39
  4. Step 4: Simplify right side
    15,823.64x = 304,963,139.44
  5. Step 5: Solve for x
    x = 304,963,139.44/15,823.64
  6. Step 6: Final answer
    x = 19,272.63

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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.