Home / 11,688.80-17,536.85-3,903.08

Finding the Fourth Proportional to 11,688.80, 17,536.85 and 3,903.08

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Solution

The fourth proportional to 11,688.80, 17,536.85 and 3,903.08 is: 5,855.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,688.80 : 17,536.85 = 3,903.08 : x
  2. Step 2: Convert to fraction form
    11,688.80/17,536.85 = 3,903.08/x
  3. Step 3: Cross multiply
    11,688.80x = 17,536.85 × 3,903.08
  4. Step 4: Simplify right side
    11,688.80x = 68,447,782.10
  5. Step 5: Solve for x
    x = 68,447,782.10/11,688.80
  6. Step 6: Final answer
    x = 5,855.84

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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.