Home / 13,750.78-19,026.08-11,986.06

Finding the Fourth Proportional to 13,750.78, 19,026.08 and 11,986.06

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Solution

The fourth proportional to 13,750.78, 19,026.08 and 11,986.06 is: 16,584.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,750.78 : 19,026.08 = 11,986.06 : x
  2. Step 2: Convert to fraction form
    13,750.78/19,026.08 = 11,986.06/x
  3. Step 3: Cross multiply
    13,750.78x = 19,026.08 × 11,986.06
  4. Step 4: Simplify right side
    13,750.78x = 228,047,736.44
  5. Step 5: Solve for x
    x = 228,047,736.44/13,750.78
  6. Step 6: Final answer
    x = 16,584.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.