Home / 15,058.50-20,781.03-8,771.28

Finding the Fourth Proportional to 15,058.50, 20,781.03 and 8,771.28

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Solution

The fourth proportional to 15,058.50, 20,781.03 and 8,771.28 is: 12,104.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,058.50 : 20,781.03 = 8,771.28 : x
  2. Step 2: Convert to fraction form
    15,058.50/20,781.03 = 8,771.28/x
  3. Step 3: Cross multiply
    15,058.50x = 20,781.03 × 8,771.28
  4. Step 4: Simplify right side
    15,058.50x = 182,276,232.82
  5. Step 5: Solve for x
    x = 182,276,232.82/15,058.50
  6. Step 6: Final answer
    x = 12,104.54

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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.