Home / 9,919.20-14,880.52-3,345.44

Finding the Fourth Proportional to 9,919.20, 14,880.52 and 3,345.44

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Solution

The fourth proportional to 9,919.20, 14,880.52 and 3,345.44 is: 5,018.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,919.20 : 14,880.52 = 3,345.44 : x
  2. Step 2: Convert to fraction form
    9,919.20/14,880.52 = 3,345.44/x
  3. Step 3: Cross multiply
    9,919.20x = 14,880.52 × 3,345.44
  4. Step 4: Simplify right side
    9,919.20x = 49,781,886.83
  5. Step 5: Solve for x
    x = 49,781,886.83/9,919.20
  6. Step 6: Final answer
    x = 5,018.74

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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.