Home / 15,315.86-22,972.16-6,993.38

Finding the Fourth Proportional to 15,315.86, 22,972.16 and 6,993.38

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Solution

The fourth proportional to 15,315.86, 22,972.16 and 6,993.38 is: 10,489.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,315.86 : 22,972.16 = 6,993.38 : x
  2. Step 2: Convert to fraction form
    15,315.86/22,972.16 = 6,993.38/x
  3. Step 3: Cross multiply
    15,315.86x = 22,972.16 × 6,993.38
  4. Step 4: Simplify right side
    15,315.86x = 160,653,044.30
  5. Step 5: Solve for x
    x = 160,653,044.30/15,315.86
  6. Step 6: Final answer
    x = 10,489.33

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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.