Home / 14,028.28-21,040.22-8,409.08

Finding the Fourth Proportional to 14,028.28, 21,040.22 and 8,409.08

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Solution

The fourth proportional to 14,028.28, 21,040.22 and 8,409.08 is: 12,612.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,028.28 : 21,040.22 = 8,409.08 : x
  2. Step 2: Convert to fraction form
    14,028.28/21,040.22 = 8,409.08/x
  3. Step 3: Cross multiply
    14,028.28x = 21,040.22 × 8,409.08
  4. Step 4: Simplify right side
    14,028.28x = 176,928,893.20
  5. Step 5: Solve for x
    x = 176,928,893.20/14,028.28
  6. Step 6: Final answer
    x = 12,612.30

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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.