Home / 18,512.40-27,768.60-8,670.90

Finding the Fourth Proportional to 18,512.40, 27,768.60 and 8,670.90

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Solution

The fourth proportional to 18,512.40, 27,768.60 and 8,670.90 is: 13,006.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,512.40 : 27,768.60 = 8,670.90 : x
  2. Step 2: Convert to fraction form
    18,512.40/27,768.60 = 8,670.90/x
  3. Step 3: Cross multiply
    18,512.40x = 27,768.60 × 8,670.90
  4. Step 4: Simplify right side
    18,512.40x = 240,778,753.74
  5. Step 5: Solve for x
    x = 240,778,753.74/18,512.40
  6. Step 6: Final answer
    x = 13,006.35

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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.