Home / 15,748.65-21,732.15-8,675.04

Finding the Fourth Proportional to 15,748.65, 21,732.15 and 8,675.04

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Solution

The fourth proportional to 15,748.65, 21,732.15 and 8,675.04 is: 11,971.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,748.65 : 21,732.15 = 8,675.04 : x
  2. Step 2: Convert to fraction form
    15,748.65/21,732.15 = 8,675.04/x
  3. Step 3: Cross multiply
    15,748.65x = 21,732.15 × 8,675.04
  4. Step 4: Simplify right side
    15,748.65x = 188,527,270.54
  5. Step 5: Solve for x
    x = 188,527,270.54/15,748.65
  6. Step 6: Final answer
    x = 11,971.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.