Home / 15,576.13-21,504.78-9,996.85

Finding the Fourth Proportional to 15,576.13, 21,504.78 and 9,996.85

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Solution

The fourth proportional to 15,576.13, 21,504.78 and 9,996.85 is: 13,801.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,576.13 : 21,504.78 = 9,996.85 : x
  2. Step 2: Convert to fraction form
    15,576.13/21,504.78 = 9,996.85/x
  3. Step 3: Cross multiply
    15,576.13x = 21,504.78 × 9,996.85
  4. Step 4: Simplify right side
    15,576.13x = 214,979,902.43
  5. Step 5: Solve for x
    x = 214,979,902.43/15,576.13
  6. Step 6: Final answer
    x = 13,801.89

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Half scale
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Double scale
Find fourth proportional to 15,577.13, 21,506.16 and 9,997.85
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.