Home / 12,685.12-19,027.69-8,012.23

Finding the Fourth Proportional to 12,685.12, 19,027.69 and 8,012.23

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Solution

The fourth proportional to 12,685.12, 19,027.69 and 8,012.23 is: 12,018.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,685.12 : 19,027.69 = 8,012.23 : x
  2. Step 2: Convert to fraction form
    12,685.12/19,027.69 = 8,012.23/x
  3. Step 3: Cross multiply
    12,685.12x = 19,027.69 × 8,012.23
  4. Step 4: Simplify right side
    12,685.12x = 152,454,313.15
  5. Step 5: Solve for x
    x = 152,454,313.15/12,685.12
  6. Step 6: Final answer
    x = 12,018.36

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.