Home / 8,228.70-12,345.93-2,385.66

Finding the Fourth Proportional to 8,228.70, 12,345.93 and 2,385.66

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Solution

The fourth proportional to 8,228.70, 12,345.93 and 2,385.66 is: 3,579.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,228.70 : 12,345.93 = 2,385.66 : x
  2. Step 2: Convert to fraction form
    8,228.70/12,345.93 = 2,385.66/x
  3. Step 3: Cross multiply
    8,228.70x = 12,345.93 × 2,385.66
  4. Step 4: Simplify right side
    8,228.70x = 29,453,191.36
  5. Step 5: Solve for x
    x = 29,453,191.36/8,228.70
  6. Step 6: Final answer
    x = 3,579.32

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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.