Home / 13,405.10-20,107.64-5,608.44

Finding the Fourth Proportional to 13,405.10, 20,107.64 and 5,608.44

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Solution

The fourth proportional to 13,405.10, 20,107.64 and 5,608.44 is: 8,412.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,405.10 : 20,107.64 = 5,608.44 : x
  2. Step 2: Convert to fraction form
    13,405.10/20,107.64 = 5,608.44/x
  3. Step 3: Cross multiply
    13,405.10x = 20,107.64 × 5,608.44
  4. Step 4: Simplify right side
    13,405.10x = 112,772,506.50
  5. Step 5: Solve for x
    x = 112,772,506.50/13,405.10
  6. Step 6: Final answer
    x = 8,412.66

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1.5x scale

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.