Home / 12,085.02-18,040.16-11,219.94

Finding the Fourth Proportional to 12,085.02, 18,040.16 and 11,219.94

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Solution

The fourth proportional to 12,085.02, 18,040.16 and 11,219.94 is: 16,748.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,085.02 : 18,040.16 = 11,219.94 : x
  2. Step 2: Convert to fraction form
    12,085.02/18,040.16 = 11,219.94/x
  3. Step 3: Cross multiply
    12,085.02x = 18,040.16 × 11,219.94
  4. Step 4: Simplify right side
    12,085.02x = 202,409,512.79
  5. Step 5: Solve for x
    x = 202,409,512.79/12,085.02
  6. Step 6: Final answer
    x = 16,748.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.