Home / 11,756.39-16,223.70-6,451.21

Finding the Fourth Proportional to 11,756.39, 16,223.70 and 6,451.21

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Solution

The fourth proportional to 11,756.39, 16,223.70 and 6,451.21 is: 8,902.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,756.39 : 16,223.70 = 6,451.21 : x
  2. Step 2: Convert to fraction form
    11,756.39/16,223.70 = 6,451.21/x
  3. Step 3: Cross multiply
    11,756.39x = 16,223.70 × 6,451.21
  4. Step 4: Simplify right side
    11,756.39x = 104,662,495.68
  5. Step 5: Solve for x
    x = 104,662,495.68/11,756.39
  6. Step 6: Final answer
    x = 8,902.60

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Half scale
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Double scale
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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.