Home / 8,165.21-11,268.12-4,628.35

Finding the Fourth Proportional to 8,165.21, 11,268.12 and 4,628.35

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Solution

The fourth proportional to 8,165.21, 11,268.12 and 4,628.35 is: 6,387.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,165.21 : 11,268.12 = 4,628.35 : x
  2. Step 2: Convert to fraction form
    8,165.21/11,268.12 = 4,628.35/x
  3. Step 3: Cross multiply
    8,165.21x = 11,268.12 × 4,628.35
  4. Step 4: Simplify right side
    8,165.21x = 52,152,803.20
  5. Step 5: Solve for x
    x = 52,152,803.20/8,165.21
  6. Step 6: Final answer
    x = 6,387.20

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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.