Home / 12,346.42-18,515.79-4,136.50

Finding the Fourth Proportional to 12,346.42, 18,515.79 and 4,136.50

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Solution

The fourth proportional to 12,346.42, 18,515.79 and 4,136.50 is: 6,203.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,346.42 : 18,515.79 = 4,136.50 : x
  2. Step 2: Convert to fraction form
    12,346.42/18,515.79 = 4,136.50/x
  3. Step 3: Cross multiply
    12,346.42x = 18,515.79 × 4,136.50
  4. Step 4: Simplify right side
    12,346.42x = 76,590,565.34
  5. Step 5: Solve for x
    x = 76,590,565.34/12,346.42
  6. Step 6: Final answer
    x = 6,203.46

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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.