Home / 12,268.84-18,387.81-6,646.28

Finding the Fourth Proportional to 12,268.84, 18,387.81 and 6,646.28

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Solution

The fourth proportional to 12,268.84, 18,387.81 and 6,646.28 is: 9,961.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,268.84 : 18,387.81 = 6,646.28 : x
  2. Step 2: Convert to fraction form
    12,268.84/18,387.81 = 6,646.28/x
  3. Step 3: Cross multiply
    12,268.84x = 18,387.81 × 6,646.28
  4. Step 4: Simplify right side
    12,268.84x = 122,210,493.62
  5. Step 5: Solve for x
    x = 122,210,493.62/12,268.84
  6. Step 6: Final answer
    x = 9,961.05

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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.