Home / 15,269.19-21,072.83-8,554.77

Finding the Fourth Proportional to 15,269.19, 21,072.83 and 8,554.77

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Solution

The fourth proportional to 15,269.19, 21,072.83 and 8,554.77 is: 11,806.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,269.19 : 21,072.83 = 8,554.77 : x
  2. Step 2: Convert to fraction form
    15,269.19/21,072.83 = 8,554.77/x
  3. Step 3: Cross multiply
    15,269.19x = 21,072.83 × 8,554.77
  4. Step 4: Simplify right side
    15,269.19x = 180,273,213.90
  5. Step 5: Solve for x
    x = 180,273,213.90/15,269.19
  6. Step 6: Final answer
    x = 11,806.34

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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.