Home / 13,628.22-20,445.21-4,393.50

Finding the Fourth Proportional to 13,628.22, 20,445.21 and 4,393.50

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Solution

The fourth proportional to 13,628.22, 20,445.21 and 4,393.50 is: 6,591.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,628.22 : 20,445.21 = 4,393.50 : x
  2. Step 2: Convert to fraction form
    13,628.22/20,445.21 = 4,393.50/x
  3. Step 3: Cross multiply
    13,628.22x = 20,445.21 × 4,393.50
  4. Step 4: Simplify right side
    13,628.22x = 89,826,030.14
  5. Step 5: Solve for x
    x = 89,826,030.14/13,628.22
  6. Step 6: Final answer
    x = 6,591.18

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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.