Home / 13,394.63-20,091.78-5,603.46

Finding the Fourth Proportional to 13,394.63, 20,091.78 and 5,603.46

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Solution

The fourth proportional to 13,394.63, 20,091.78 and 5,603.46 is: 8,405.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,394.63 : 20,091.78 = 5,603.46 : x
  2. Step 2: Convert to fraction form
    13,394.63/20,091.78 = 5,603.46/x
  3. Step 3: Cross multiply
    13,394.63x = 20,091.78 × 5,603.46
  4. Step 4: Simplify right side
    13,394.63x = 112,583,485.56
  5. Step 5: Solve for x
    x = 112,583,485.56/13,394.63
  6. Step 6: Final answer
    x = 8,405.12

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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.