Home / 6,417.68-8,855.40-3,623.12

Finding the Fourth Proportional to 6,417.68, 8,855.40 and 3,623.12

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Solution

The fourth proportional to 6,417.68, 8,855.40 and 3,623.12 is: 4,999.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,417.68 : 8,855.40 = 3,623.12 : x
  2. Step 2: Convert to fraction form
    6,417.68/8,855.40 = 3,623.12/x
  3. Step 3: Cross multiply
    6,417.68x = 8,855.40 × 3,623.12
  4. Step 4: Simplify right side
    6,417.68x = 32,084,176.85
  5. Step 5: Solve for x
    x = 32,084,176.85/6,417.68
  6. Step 6: Final answer
    x = 4,999.34

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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.