Home / 8,405.21-11,599.08-4,628.37

Finding the Fourth Proportional to 8,405.21, 11,599.08 and 4,628.37

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Solution

The fourth proportional to 8,405.21, 11,599.08 and 4,628.37 is: 6,387.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,405.21 : 11,599.08 = 4,628.37 : x
  2. Step 2: Convert to fraction form
    8,405.21/11,599.08 = 4,628.37/x
  3. Step 3: Cross multiply
    8,405.21x = 11,599.08 × 4,628.37
  4. Step 4: Simplify right side
    8,405.21x = 53,684,833.90
  5. Step 5: Solve for x
    x = 53,684,833.90/8,405.21
  6. Step 6: Final answer
    x = 6,387.09

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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.