Home / 9,921.11-14,880.99-5,487.44

Finding the Fourth Proportional to 9,921.11, 14,880.99 and 5,487.44

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Solution

The fourth proportional to 9,921.11, 14,880.99 and 5,487.44 is: 8,230.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,921.11 : 14,880.99 = 5,487.44 : x
  2. Step 2: Convert to fraction form
    9,921.11/14,880.99 = 5,487.44/x
  3. Step 3: Cross multiply
    9,921.11x = 14,880.99 × 5,487.44
  4. Step 4: Simplify right side
    9,921.11x = 81,658,539.77
  5. Step 5: Solve for x
    x = 81,658,539.77/9,921.11
  6. Step 6: Final answer
    x = 8,230.79

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1.5x scale

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.