Home / 15,308.21-22,940.42-8,720.80

Finding the Fourth Proportional to 15,308.21, 22,940.42 and 8,720.80

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Solution

The fourth proportional to 15,308.21, 22,940.42 and 8,720.80 is: 13,068.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,308.21 : 22,940.42 = 8,720.80 : x
  2. Step 2: Convert to fraction form
    15,308.21/22,940.42 = 8,720.80/x
  3. Step 3: Cross multiply
    15,308.21x = 22,940.42 × 8,720.80
  4. Step 4: Simplify right side
    15,308.21x = 200,058,713.78
  5. Step 5: Solve for x
    x = 200,058,713.78/15,308.21
  6. Step 6: Final answer
    x = 13,068.72

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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.