Home / 13,315.66-19,975.38-7,074.04

Finding the Fourth Proportional to 13,315.66, 19,975.38 and 7,074.04

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Solution

The fourth proportional to 13,315.66, 19,975.38 and 7,074.04 is: 10,612.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315.66 : 19,975.38 = 7,074.04 : x
  2. Step 2: Convert to fraction form
    13,315.66/19,975.38 = 7,074.04/x
  3. Step 3: Cross multiply
    13,315.66x = 19,975.38 × 7,074.04
  4. Step 4: Simplify right side
    13,315.66x = 141,306,637.14
  5. Step 5: Solve for x
    x = 141,306,637.14/13,315.66
  6. Step 6: Final answer
    x = 10,612.06

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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.