Home / 12,395.50-17,106.16-6,806.86

Finding the Fourth Proportional to 12,395.50, 17,106.16 and 6,806.86

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Solution

The fourth proportional to 12,395.50, 17,106.16 and 6,806.86 is: 9,393.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,395.50 : 17,106.16 = 6,806.86 : x
  2. Step 2: Convert to fraction form
    12,395.50/17,106.16 = 6,806.86/x
  3. Step 3: Cross multiply
    12,395.50x = 17,106.16 × 6,806.86
  4. Step 4: Simplify right side
    12,395.50x = 116,439,236.26
  5. Step 5: Solve for x
    x = 116,439,236.26/12,395.50
  6. Step 6: Final answer
    x = 9,393.67

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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.