Home / 12,077.25-18,102.87-5,055.45

Finding the Fourth Proportional to 12,077.25, 18,102.87 and 5,055.45

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Solution

The fourth proportional to 12,077.25, 18,102.87 and 5,055.45 is: 7,577.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,077.25 : 18,102.87 = 5,055.45 : x
  2. Step 2: Convert to fraction form
    12,077.25/18,102.87 = 5,055.45/x
  3. Step 3: Cross multiply
    12,077.25x = 18,102.87 × 5,055.45
  4. Step 4: Simplify right side
    12,077.25x = 91,518,154.14
  5. Step 5: Solve for x
    x = 91,518,154.14/12,077.25
  6. Step 6: Final answer
    x = 7,577.73

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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.