Home / 13,251.72-19,880.50-7,337.22

Finding the Fourth Proportional to 13,251.72, 19,880.50 and 7,337.22

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Solution

The fourth proportional to 13,251.72, 19,880.50 and 7,337.22 is: 11,007.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,251.72 : 19,880.50 = 7,337.22 : x
  2. Step 2: Convert to fraction form
    13,251.72/19,880.50 = 7,337.22/x
  3. Step 3: Cross multiply
    13,251.72x = 19,880.50 × 7,337.22
  4. Step 4: Simplify right side
    13,251.72x = 145,867,602.21
  5. Step 5: Solve for x
    x = 145,867,602.21/13,251.72
  6. Step 6: Final answer
    x = 11,007.45

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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.