Home / 11,383.72-15,706.80-6,907.34

Finding the Fourth Proportional to 11,383.72, 15,706.80 and 6,907.34

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Solution

The fourth proportional to 11,383.72, 15,706.80 and 6,907.34 is: 9,530.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,383.72 : 15,706.80 = 6,907.34 : x
  2. Step 2: Convert to fraction form
    11,383.72/15,706.80 = 6,907.34/x
  3. Step 3: Cross multiply
    11,383.72x = 15,706.80 × 6,907.34
  4. Step 4: Simplify right side
    11,383.72x = 108,492,247.18
  5. Step 5: Solve for x
    x = 108,492,247.18/11,383.72
  6. Step 6: Final answer
    x = 9,530.48

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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.