Home / 12,050.12-18,084.30-5,129.48

Finding the Fourth Proportional to 12,050.12, 18,084.30 and 5,129.48

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Solution

The fourth proportional to 12,050.12, 18,084.30 and 5,129.48 is: 7,698.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,050.12 : 18,084.30 = 5,129.48 : x
  2. Step 2: Convert to fraction form
    12,050.12/18,084.30 = 5,129.48/x
  3. Step 3: Cross multiply
    12,050.12x = 18,084.30 × 5,129.48
  4. Step 4: Simplify right side
    12,050.12x = 92,763,055.16
  5. Step 5: Solve for x
    x = 92,763,055.16/12,050.12
  6. Step 6: Final answer
    x = 7,698.10

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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.