Home / 15,383.08-21,231.30-9,096.76

Finding the Fourth Proportional to 15,383.08, 21,231.30 and 9,096.76

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Solution

The fourth proportional to 15,383.08, 21,231.30 and 9,096.76 is: 12,555.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,383.08 : 21,231.30 = 9,096.76 : x
  2. Step 2: Convert to fraction form
    15,383.08/21,231.30 = 9,096.76/x
  3. Step 3: Cross multiply
    15,383.08x = 21,231.30 × 9,096.76
  4. Step 4: Simplify right side
    15,383.08x = 193,136,040.59
  5. Step 5: Solve for x
    x = 193,136,040.59/15,383.08
  6. Step 6: Final answer
    x = 12,555.10

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Half scale
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Double scale
Find fourth proportional to 15,384.08, 21,232.68 and 9,097.76
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.