Home / 11,107.89-15,328.67-6,072.15

Finding the Fourth Proportional to 11,107.89, 15,328.67 and 6,072.15

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Solution

The fourth proportional to 11,107.89, 15,328.67 and 6,072.15 is: 8,379.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,107.89 : 15,328.67 = 6,072.15 : x
  2. Step 2: Convert to fraction form
    11,107.89/15,328.67 = 6,072.15/x
  3. Step 3: Cross multiply
    11,107.89x = 15,328.67 × 6,072.15
  4. Step 4: Simplify right side
    11,107.89x = 93,077,953.18
  5. Step 5: Solve for x
    x = 93,077,953.18/11,107.89
  6. Step 6: Final answer
    x = 8,379.44

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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.