Home / 12,480.60-18,715.34-4,683.90

Finding the Fourth Proportional to 12,480.60, 18,715.34 and 4,683.90

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Solution

The fourth proportional to 12,480.60, 18,715.34 and 4,683.90 is: 7,023.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,480.60 : 18,715.34 = 4,683.90 : x
  2. Step 2: Convert to fraction form
    12,480.60/18,715.34 = 4,683.90/x
  3. Step 3: Cross multiply
    12,480.60x = 18,715.34 × 4,683.90
  4. Step 4: Simplify right side
    12,480.60x = 87,660,781.03
  5. Step 5: Solve for x
    x = 87,660,781.03/12,480.60
  6. Step 6: Final answer
    x = 7,023.76

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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.