Home / 12,725.21-19,087.59-5,227.18

Finding the Fourth Proportional to 12,725.21, 19,087.59 and 5,227.18

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Solution

The fourth proportional to 12,725.21, 19,087.59 and 5,227.18 is: 7,840.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,725.21 : 19,087.59 = 5,227.18 : x
  2. Step 2: Convert to fraction form
    12,725.21/19,087.59 = 5,227.18/x
  3. Step 3: Cross multiply
    12,725.21x = 19,087.59 × 5,227.18
  4. Step 4: Simplify right side
    12,725.21x = 99,774,268.70
  5. Step 5: Solve for x
    x = 99,774,268.70/12,725.21
  6. Step 6: Final answer
    x = 7,840.68

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Half scale
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Double scale
Find fourth proportional to 12,726.21, 19,089.09 and 5,228.18
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.