Home / 11,886.42-16,400.66-7,105.67

Finding the Fourth Proportional to 11,886.42, 16,400.66 and 7,105.67

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Solution

The fourth proportional to 11,886.42, 16,400.66 and 7,105.67 is: 9,804.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,886.42 : 16,400.66 = 7,105.67 : x
  2. Step 2: Convert to fraction form
    11,886.42/16,400.66 = 7,105.67/x
  3. Step 3: Cross multiply
    11,886.42x = 16,400.66 × 7,105.67
  4. Step 4: Simplify right side
    11,886.42x = 116,537,677.74
  5. Step 5: Solve for x
    x = 116,537,677.74/11,886.42
  6. Step 6: Final answer
    x = 9,804.27

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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.