Home / 15,815.10-23,714.64-5,281.37

Finding the Fourth Proportional to 15,815.10, 23,714.64 and 5,281.37

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Solution

The fourth proportional to 15,815.10, 23,714.64 and 5,281.37 is: 7,919.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,815.10 : 23,714.64 = 5,281.37 : x
  2. Step 2: Convert to fraction form
    15,815.10/23,714.64 = 5,281.37/x
  3. Step 3: Cross multiply
    15,815.10x = 23,714.64 × 5,281.37
  4. Step 4: Simplify right side
    15,815.10x = 125,245,788.26
  5. Step 5: Solve for x
    x = 125,245,788.26/15,815.10
  6. Step 6: Final answer
    x = 7,919.38

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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.