Home / 12,403.28-17,116.66-6,738.09

Finding the Fourth Proportional to 12,403.28, 17,116.66 and 6,738.09

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Solution

The fourth proportional to 12,403.28, 17,116.66 and 6,738.09 is: 9,298.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,403.28 : 17,116.66 = 6,738.09 : x
  2. Step 2: Convert to fraction form
    12,403.28/17,116.66 = 6,738.09/x
  3. Step 3: Cross multiply
    12,403.28x = 17,116.66 × 6,738.09
  4. Step 4: Simplify right side
    12,403.28x = 115,333,595.58
  5. Step 5: Solve for x
    x = 115,333,595.58/12,403.28
  6. Step 6: Final answer
    x = 9,298.64

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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.