Home / 8,126.18-11,219.33-6,637.67

Finding the Fourth Proportional to 8,126.18, 11,219.33 and 6,637.67

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Solution

The fourth proportional to 8,126.18, 11,219.33 and 6,637.67 is: 9,164.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,126.18 : 11,219.33 = 6,637.67 : x
  2. Step 2: Convert to fraction form
    8,126.18/11,219.33 = 6,637.67/x
  3. Step 3: Cross multiply
    8,126.18x = 11,219.33 × 6,637.67
  4. Step 4: Simplify right side
    8,126.18x = 74,470,170.66
  5. Step 5: Solve for x
    x = 74,470,170.66/8,126.18
  6. Step 6: Final answer
    x = 9,164.23

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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.