Home / 11,688.03-16,131.56-6,907.77

Finding the Fourth Proportional to 11,688.03, 16,131.56 and 6,907.77

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Solution

The fourth proportional to 11,688.03, 16,131.56 and 6,907.77 is: 9,533.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,688.03 : 16,131.56 = 6,907.77 : x
  2. Step 2: Convert to fraction form
    11,688.03/16,131.56 = 6,907.77/x
  3. Step 3: Cross multiply
    11,688.03x = 16,131.56 × 6,907.77
  4. Step 4: Simplify right side
    11,688.03x = 111,433,106.22
  5. Step 5: Solve for x
    x = 111,433,106.22/11,688.03
  6. Step 6: Final answer
    x = 9,533.95

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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.