Home / 13,911.10-20,852.61-6,118.54

Finding the Fourth Proportional to 13,911.10, 20,852.61 and 6,118.54

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Solution

The fourth proportional to 13,911.10, 20,852.61 and 6,118.54 is: 9,171.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.10 : 20,852.61 = 6,118.54 : x
  2. Step 2: Convert to fraction form
    13,911.10/20,852.61 = 6,118.54/x
  3. Step 3: Cross multiply
    13,911.10x = 20,852.61 × 6,118.54
  4. Step 4: Simplify right side
    13,911.10x = 127,587,528.39
  5. Step 5: Solve for x
    x = 127,587,528.39/13,911.10
  6. Step 6: Final answer
    x = 9,171.63

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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.