Home / 15,458.78-23,180.38-11,013.91

Finding the Fourth Proportional to 15,458.78, 23,180.38 and 11,013.91

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Solution

The fourth proportional to 15,458.78, 23,180.38 and 11,013.91 is: 16,515.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,458.78 : 23,180.38 = 11,013.91 : x
  2. Step 2: Convert to fraction form
    15,458.78/23,180.38 = 11,013.91/x
  3. Step 3: Cross multiply
    15,458.78x = 23,180.38 × 11,013.91
  4. Step 4: Simplify right side
    15,458.78x = 255,306,533.60
  5. Step 5: Solve for x
    x = 255,306,533.60/15,458.78
  6. Step 6: Final answer
    x = 16,515.31

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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.