Home / 11,681.48-16,120.33-7,203.44

Finding the Fourth Proportional to 11,681.48, 16,120.33 and 7,203.44

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Solution

The fourth proportional to 11,681.48, 16,120.33 and 7,203.44 is: 9,940.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,681.48 : 16,120.33 = 7,203.44 : x
  2. Step 2: Convert to fraction form
    11,681.48/16,120.33 = 7,203.44/x
  3. Step 3: Cross multiply
    11,681.48x = 16,120.33 × 7,203.44
  4. Step 4: Simplify right side
    11,681.48x = 116,121,731.32
  5. Step 5: Solve for x
    x = 116,121,731.32/11,681.48
  6. Step 6: Final answer
    x = 9,940.67

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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.