Home / 13,712.90-20,565.09-4,946.67

Finding the Fourth Proportional to 13,712.90, 20,565.09 and 4,946.67

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Solution

The fourth proportional to 13,712.90, 20,565.09 and 4,946.67 is: 7,418.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712.90 : 20,565.09 = 4,946.67 : x
  2. Step 2: Convert to fraction form
    13,712.90/20,565.09 = 4,946.67/x
  3. Step 3: Cross multiply
    13,712.90x = 20,565.09 × 4,946.67
  4. Step 4: Simplify right side
    13,712.90x = 101,728,713.75
  5. Step 5: Solve for x
    x = 101,728,713.75/13,712.90
  6. Step 6: Final answer
    x = 7,418.47

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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.