Home / 13,364.51-18,436.53-8,828.97

Finding the Fourth Proportional to 13,364.51, 18,436.53 and 8,828.97

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Solution

The fourth proportional to 13,364.51, 18,436.53 and 8,828.97 is: 12,179.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,364.51 : 18,436.53 = 8,828.97 : x
  2. Step 2: Convert to fraction form
    13,364.51/18,436.53 = 8,828.97/x
  3. Step 3: Cross multiply
    13,364.51x = 18,436.53 × 8,828.97
  4. Step 4: Simplify right side
    13,364.51x = 162,775,478.09
  5. Step 5: Solve for x
    x = 162,775,478.09/13,364.51
  6. Step 6: Final answer
    x = 12,179.68

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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.