Home / 7,888.16-11,835.75-4,189.49

Finding the Fourth Proportional to 7,888.16, 11,835.75 and 4,189.49

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Solution

The fourth proportional to 7,888.16, 11,835.75 and 4,189.49 is: 6,286.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,888.16 : 11,835.75 = 4,189.49 : x
  2. Step 2: Convert to fraction form
    7,888.16/11,835.75 = 4,189.49/x
  3. Step 3: Cross multiply
    7,888.16x = 11,835.75 × 4,189.49
  4. Step 4: Simplify right side
    7,888.16x = 49,585,756.27
  5. Step 5: Solve for x
    x = 49,585,756.27/7,888.16
  6. Step 6: Final answer
    x = 6,286.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.