Home / 13,660.61-20,468.26-4,771.16

Finding the Fourth Proportional to 13,660.61, 20,468.26 and 4,771.16

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Solution

The fourth proportional to 13,660.61, 20,468.26 and 4,771.16 is: 7,148.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,660.61 : 20,468.26 = 4,771.16 : x
  2. Step 2: Convert to fraction form
    13,660.61/20,468.26 = 4,771.16/x
  3. Step 3: Cross multiply
    13,660.61x = 20,468.26 × 4,771.16
  4. Step 4: Simplify right side
    13,660.61x = 97,657,323.76
  5. Step 5: Solve for x
    x = 97,657,323.76/13,660.61
  6. Step 6: Final answer
    x = 7,148.83

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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.