Home / 15,194.80-20,937.72-11,209.60

Finding the Fourth Proportional to 15,194.80, 20,937.72 and 11,209.60

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Solution

The fourth proportional to 15,194.80, 20,937.72 and 11,209.60 is: 15,446.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,194.80 : 20,937.72 = 11,209.60 : x
  2. Step 2: Convert to fraction form
    15,194.80/20,937.72 = 11,209.60/x
  3. Step 3: Cross multiply
    15,194.80x = 20,937.72 × 11,209.60
  4. Step 4: Simplify right side
    15,194.80x = 234,703,466.11
  5. Step 5: Solve for x
    x = 234,703,466.11/15,194.80
  6. Step 6: Final answer
    x = 15,446.30

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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.