Home / 13,207.22-19,813.71-3,972.50

Finding the Fourth Proportional to 13,207.22, 19,813.71 and 3,972.50

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Solution

The fourth proportional to 13,207.22, 19,813.71 and 3,972.50 is: 5,959.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207.22 : 19,813.71 = 3,972.50 : x
  2. Step 2: Convert to fraction form
    13,207.22/19,813.71 = 3,972.50/x
  3. Step 3: Cross multiply
    13,207.22x = 19,813.71 × 3,972.50
  4. Step 4: Simplify right side
    13,207.22x = 78,709,962.98
  5. Step 5: Solve for x
    x = 78,709,962.98/13,207.22
  6. Step 6: Final answer
    x = 5,959.62

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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.