Home / 15,190.34-20,959.30-8,813.23

Finding the Fourth Proportional to 15,190.34, 20,959.30 and 8,813.23

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Solution

The fourth proportional to 15,190.34, 20,959.30 and 8,813.23 is: 12,160.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,190.34 : 20,959.30 = 8,813.23 : x
  2. Step 2: Convert to fraction form
    15,190.34/20,959.30 = 8,813.23/x
  3. Step 3: Cross multiply
    15,190.34x = 20,959.30 × 8,813.23
  4. Step 4: Simplify right side
    15,190.34x = 184,719,131.54
  5. Step 5: Solve for x
    x = 184,719,131.54/15,190.34
  6. Step 6: Final answer
    x = 12,160.31

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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.