Home / 12,403.39-17,116.70-6,738.16

Finding the Fourth Proportional to 12,403.39, 17,116.70 and 6,738.16

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Solution

The fourth proportional to 12,403.39, 17,116.70 and 6,738.16 is: 9,298.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,403.39 : 17,116.70 = 6,738.16 : x
  2. Step 2: Convert to fraction form
    12,403.39/17,116.70 = 6,738.16/x
  3. Step 3: Cross multiply
    12,403.39x = 17,116.70 × 6,738.16
  4. Step 4: Simplify right side
    12,403.39x = 115,335,063.27
  5. Step 5: Solve for x
    x = 115,335,063.27/12,403.39
  6. Step 6: Final answer
    x = 9,298.67

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Half scale
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Double scale
Find fourth proportional to 12,404.39, 17,118.08 and 6,739.16
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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.