Home / 7,638.38-10,546.09-4,771.48

Finding the Fourth Proportional to 7,638.38, 10,546.09 and 4,771.48

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Solution

The fourth proportional to 7,638.38, 10,546.09 and 4,771.48 is: 6,587.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,638.38 : 10,546.09 = 4,771.48 : x
  2. Step 2: Convert to fraction form
    7,638.38/10,546.09 = 4,771.48/x
  3. Step 3: Cross multiply
    7,638.38x = 10,546.09 × 4,771.48
  4. Step 4: Simplify right side
    7,638.38x = 50,320,457.51
  5. Step 5: Solve for x
    x = 50,320,457.51/7,638.38
  6. Step 6: Final answer
    x = 6,587.84

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Half scale
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Double scale
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Similar ratio
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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.