Home / 15,315.87-22,973.79-4,786.80

Finding the Fourth Proportional to 15,315.87, 22,973.79 and 4,786.80

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Solution

The fourth proportional to 15,315.87, 22,973.79 and 4,786.80 is: 7,180.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,315.87 : 22,973.79 = 4,786.80 : x
  2. Step 2: Convert to fraction form
    15,315.87/22,973.79 = 4,786.80/x
  3. Step 3: Cross multiply
    15,315.87x = 22,973.79 × 4,786.80
  4. Step 4: Simplify right side
    15,315.87x = 109,970,937.97
  5. Step 5: Solve for x
    x = 109,970,937.97/15,315.87
  6. Step 6: Final answer
    x = 7,180.20

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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.