Home / 11,818.16-16,309.07-6,440.60

Finding the Fourth Proportional to 11,818.16, 16,309.07 and 6,440.60

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Solution

The fourth proportional to 11,818.16, 16,309.07 and 6,440.60 is: 8,888.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,818.16 : 16,309.07 = 6,440.60 : x
  2. Step 2: Convert to fraction form
    11,818.16/16,309.07 = 6,440.60/x
  3. Step 3: Cross multiply
    11,818.16x = 16,309.07 × 6,440.60
  4. Step 4: Simplify right side
    11,818.16x = 105,040,174.04
  5. Step 5: Solve for x
    x = 105,040,174.04/11,818.16
  6. Step 6: Final answer
    x = 8,888.03

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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.