Home / 13,440.48-20,166.84-6,863.28

Finding the Fourth Proportional to 13,440.48, 20,166.84 and 6,863.28

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Solution

The fourth proportional to 13,440.48, 20,166.84 and 6,863.28 is: 10,298.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440.48 : 20,166.84 = 6,863.28 : x
  2. Step 2: Convert to fraction form
    13,440.48/20,166.84 = 6,863.28/x
  3. Step 3: Cross multiply
    13,440.48x = 20,166.84 × 6,863.28
  4. Step 4: Simplify right side
    13,440.48x = 138,410,669.64
  5. Step 5: Solve for x
    x = 138,410,669.64/13,440.48
  6. Step 6: Final answer
    x = 10,298.05

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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.