Home / 12,085.48-18,113.64-6,238.90

Finding the Fourth Proportional to 12,085.48, 18,113.64 and 6,238.90

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Solution

The fourth proportional to 12,085.48, 18,113.64 and 6,238.90 is: 9,350.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,085.48 : 18,113.64 = 6,238.90 : x
  2. Step 2: Convert to fraction form
    12,085.48/18,113.64 = 6,238.90/x
  3. Step 3: Cross multiply
    12,085.48x = 18,113.64 × 6,238.90
  4. Step 4: Simplify right side
    12,085.48x = 113,009,188.60
  5. Step 5: Solve for x
    x = 113,009,188.60/12,085.48
  6. Step 6: Final answer
    x = 9,350.82

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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.