Home / 8,786.48-12,104.52-6,129.20

Finding the Fourth Proportional to 8,786.48, 12,104.52 and 6,129.20

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Solution

The fourth proportional to 8,786.48, 12,104.52 and 6,129.20 is: 8,443.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786.48 : 12,104.52 = 6,129.20 : x
  2. Step 2: Convert to fraction form
    8,786.48/12,104.52 = 6,129.20/x
  3. Step 3: Cross multiply
    8,786.48x = 12,104.52 × 6,129.20
  4. Step 4: Simplify right side
    8,786.48x = 74,191,023.98
  5. Step 5: Solve for x
    x = 74,191,023.98/8,786.48
  6. Step 6: Final answer
    x = 8,443.77

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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.