Home / 12,014.03-18,015.77-6,390.48

Finding the Fourth Proportional to 12,014.03, 18,015.77 and 6,390.48

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Solution

The fourth proportional to 12,014.03, 18,015.77 and 6,390.48 is: 9,582.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,014.03 : 18,015.77 = 6,390.48 : x
  2. Step 2: Convert to fraction form
    12,014.03/18,015.77 = 6,390.48/x
  3. Step 3: Cross multiply
    12,014.03x = 18,015.77 × 6,390.48
  4. Step 4: Simplify right side
    12,014.03x = 115,129,364.12
  5. Step 5: Solve for x
    x = 115,129,364.12/12,014.03
  6. Step 6: Final answer
    x = 9,582.91

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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.