Home / 13,666.64-20,498.58-3,806.00

Finding the Fourth Proportional to 13,666.64, 20,498.58 and 3,806.00

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Solution

The fourth proportional to 13,666.64, 20,498.58 and 3,806.00 is: 5,708.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,666.64 : 20,498.58 = 3,806.00 : x
  2. Step 2: Convert to fraction form
    13,666.64/20,498.58 = 3,806.00/x
  3. Step 3: Cross multiply
    13,666.64x = 20,498.58 × 3,806.00
  4. Step 4: Simplify right side
    13,666.64x = 78,017,492.99
  5. Step 5: Solve for x
    x = 78,017,492.99/13,666.64
  6. Step 6: Final answer
    x = 5,708.61

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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.