Home / 11,279.60-16,919.84-5,038.44

Finding the Fourth Proportional to 11,279.60, 16,919.84 and 5,038.44

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Solution

The fourth proportional to 11,279.60, 16,919.84 and 5,038.44 is: 7,557.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,279.60 : 16,919.84 = 5,038.44 : x
  2. Step 2: Convert to fraction form
    11,279.60/16,919.84 = 5,038.44/x
  3. Step 3: Cross multiply
    11,279.60x = 16,919.84 × 5,038.44
  4. Step 4: Simplify right side
    11,279.60x = 85,249,598.65
  5. Step 5: Solve for x
    x = 85,249,598.65/11,279.60
  6. Step 6: Final answer
    x = 7,557.86

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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.