Home / 13,810.71-20,725.15-7,575.09

Finding the Fourth Proportional to 13,810.71, 20,725.15 and 7,575.09

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Solution

The fourth proportional to 13,810.71, 20,725.15 and 7,575.09 is: 11,367.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,810.71 : 20,725.15 = 7,575.09 : x
  2. Step 2: Convert to fraction form
    13,810.71/20,725.15 = 7,575.09/x
  3. Step 3: Cross multiply
    13,810.71x = 20,725.15 × 7,575.09
  4. Step 4: Simplify right side
    13,810.71x = 156,994,935.30
  5. Step 5: Solve for x
    x = 156,994,935.30/13,810.71
  6. Step 6: Final answer
    x = 11,367.62

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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.