Home / 15,194.24-20,967.84-8,907.20

Finding the Fourth Proportional to 15,194.24, 20,967.84 and 8,907.20

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Solution

The fourth proportional to 15,194.24, 20,967.84 and 8,907.20 is: 12,291.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,194.24 : 20,967.84 = 8,907.20 : x
  2. Step 2: Convert to fraction form
    15,194.24/20,967.84 = 8,907.20/x
  3. Step 3: Cross multiply
    15,194.24x = 20,967.84 × 8,907.20
  4. Step 4: Simplify right side
    15,194.24x = 186,764,744.45
  5. Step 5: Solve for x
    x = 186,764,744.45/15,194.24
  6. Step 6: Final answer
    x = 12,291.81

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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.