Home / 14,169.54-21,258.42-5,405.16

Finding the Fourth Proportional to 14,169.54, 21,258.42 and 5,405.16

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Solution

The fourth proportional to 14,169.54, 21,258.42 and 5,405.16 is: 8,109.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,169.54 : 21,258.42 = 5,405.16 : x
  2. Step 2: Convert to fraction form
    14,169.54/21,258.42 = 5,405.16/x
  3. Step 3: Cross multiply
    14,169.54x = 21,258.42 × 5,405.16
  4. Step 4: Simplify right side
    14,169.54x = 114,905,161.45
  5. Step 5: Solve for x
    x = 114,905,161.45/14,169.54
  6. Step 6: Final answer
    x = 8,109.31

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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.