Home / 12,392.40-18,582.45-4,494.60

Finding the Fourth Proportional to 12,392.40, 18,582.45 and 4,494.60

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Solution

The fourth proportional to 12,392.40, 18,582.45 and 4,494.60 is: 6,739.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,392.40 : 18,582.45 = 4,494.60 : x
  2. Step 2: Convert to fraction form
    12,392.40/18,582.45 = 4,494.60/x
  3. Step 3: Cross multiply
    12,392.40x = 18,582.45 × 4,494.60
  4. Step 4: Simplify right side
    12,392.40x = 83,520,679.77
  5. Step 5: Solve for x
    x = 83,520,679.77/12,392.40
  6. Step 6: Final answer
    x = 6,739.67

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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.