Home / 8,303.86-12,456.03-3,108.74

Finding the Fourth Proportional to 8,303.86, 12,456.03 and 3,108.74

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Solution

The fourth proportional to 8,303.86, 12,456.03 and 3,108.74 is: 4,663.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,303.86 : 12,456.03 = 3,108.74 : x
  2. Step 2: Convert to fraction form
    8,303.86/12,456.03 = 3,108.74/x
  3. Step 3: Cross multiply
    8,303.86x = 12,456.03 × 3,108.74
  4. Step 4: Simplify right side
    8,303.86x = 38,722,558.70
  5. Step 5: Solve for x
    x = 38,722,558.70/8,303.86
  6. Step 6: Final answer
    x = 4,663.20

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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.