Home / 15,106.30-20,845.97-8,392.36

Finding the Fourth Proportional to 15,106.30, 20,845.97 and 8,392.36

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Solution

The fourth proportional to 15,106.30, 20,845.97 and 8,392.36 is: 11,581.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,106.30 : 20,845.97 = 8,392.36 : x
  2. Step 2: Convert to fraction form
    15,106.30/20,845.97 = 8,392.36/x
  3. Step 3: Cross multiply
    15,106.30x = 20,845.97 × 8,392.36
  4. Step 4: Simplify right side
    15,106.30x = 174,946,884.79
  5. Step 5: Solve for x
    x = 174,946,884.79/15,106.30
  6. Step 6: Final answer
    x = 11,581.05

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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.