Home / 15,051.36-20,770.56-8,336.76

Finding the Fourth Proportional to 15,051.36, 20,770.56 and 8,336.76

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Solution

The fourth proportional to 15,051.36, 20,770.56 and 8,336.76 is: 11,504.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,051.36 : 20,770.56 = 8,336.76 : x
  2. Step 2: Convert to fraction form
    15,051.36/20,770.56 = 8,336.76/x
  3. Step 3: Cross multiply
    15,051.36x = 20,770.56 × 8,336.76
  4. Step 4: Simplify right side
    15,051.36x = 173,159,173.79
  5. Step 5: Solve for x
    x = 173,159,173.79/15,051.36
  6. Step 6: Final answer
    x = 11,504.55

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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.