Home / 12,263.86-18,398.22-4,871.80

Finding the Fourth Proportional to 12,263.86, 18,398.22 and 4,871.80

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Solution

The fourth proportional to 12,263.86, 18,398.22 and 4,871.80 is: 7,308.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,263.86 : 18,398.22 = 4,871.80 : x
  2. Step 2: Convert to fraction form
    12,263.86/18,398.22 = 4,871.80/x
  3. Step 3: Cross multiply
    12,263.86x = 18,398.22 × 4,871.80
  4. Step 4: Simplify right side
    12,263.86x = 89,632,448.20
  5. Step 5: Solve for x
    x = 89,632,448.20/12,263.86
  6. Step 6: Final answer
    x = 7,308.67

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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.