Home / 12,586.93-18,880.39-5,993.12

Finding the Fourth Proportional to 12,586.93, 18,880.39 and 5,993.12

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Solution

The fourth proportional to 12,586.93, 18,880.39 and 5,993.12 is: 8,989.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,586.93 : 18,880.39 = 5,993.12 : x
  2. Step 2: Convert to fraction form
    12,586.93/18,880.39 = 5,993.12/x
  3. Step 3: Cross multiply
    12,586.93x = 18,880.39 × 5,993.12
  4. Step 4: Simplify right side
    12,586.93x = 113,152,497.61
  5. Step 5: Solve for x
    x = 113,152,497.61/12,586.93
  6. Step 6: Final answer
    x = 8,989.68

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