Home / 13,480.48-20,207.76-4,240

Finding the Fourth Proportional to 13,480.48, 20,207.76 and 4,240

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Solution

The fourth proportional to 13,480.48, 20,207.76 and 4,240 is: 6,355.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,480.48 : 20,207.76 = 4,240 : x
  2. Step 2: Convert to fraction form
    13,480.48/20,207.76 = 4,240/x
  3. Step 3: Cross multiply
    13,480.48x = 20,207.76 × 4,240
  4. Step 4: Simplify right side
    13,480.48x = 85,680,902.40
  5. Step 5: Solve for x
    x = 85,680,902.40/13,480.48
  6. Step 6: Final answer
    x = 6,355.92

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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.