Home / 8,385.04-12,579.09-6,838.75

Finding the Fourth Proportional to 8,385.04, 12,579.09 and 6,838.75

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Solution

The fourth proportional to 8,385.04, 12,579.09 and 6,838.75 is: 10,259.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,385.04 : 12,579.09 = 6,838.75 : x
  2. Step 2: Convert to fraction form
    8,385.04/12,579.09 = 6,838.75/x
  3. Step 3: Cross multiply
    8,385.04x = 12,579.09 × 6,838.75
  4. Step 4: Simplify right side
    8,385.04x = 86,025,154.65
  5. Step 5: Solve for x
    x = 86,025,154.65/8,385.04
  6. Step 6: Final answer
    x = 10,259.37

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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.