Home / 14,119.80-21,188.10-5,355.60

Finding the Fourth Proportional to 14,119.80, 21,188.10 and 5,355.60

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Solution

The fourth proportional to 14,119.80, 21,188.10 and 5,355.60 is: 8,036.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,119.80 : 21,188.10 = 5,355.60 : x
  2. Step 2: Convert to fraction form
    14,119.80/21,188.10 = 5,355.60/x
  3. Step 3: Cross multiply
    14,119.80x = 21,188.10 × 5,355.60
  4. Step 4: Simplify right side
    14,119.80x = 113,474,988.36
  5. Step 5: Solve for x
    x = 113,474,988.36/14,119.80
  6. Step 6: Final answer
    x = 8,036.59

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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.