Home / 15,153.51-20,938.96-11,804.97

Finding the Fourth Proportional to 15,153.51, 20,938.96 and 11,804.97

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Solution

The fourth proportional to 15,153.51, 20,938.96 and 11,804.97 is: 16,311.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,153.51 : 20,938.96 = 11,804.97 : x
  2. Step 2: Convert to fraction form
    15,153.51/20,938.96 = 11,804.97/x
  3. Step 3: Cross multiply
    15,153.51x = 20,938.96 × 11,804.97
  4. Step 4: Simplify right side
    15,153.51x = 247,183,794.63
  5. Step 5: Solve for x
    x = 247,183,794.63/15,153.51
  6. Step 6: Final answer
    x = 16,311.98

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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.