Home / 9,128.46-13,626.66-8,021.30

Finding the Fourth Proportional to 9,128.46, 13,626.66 and 8,021.30

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Solution

The fourth proportional to 9,128.46, 13,626.66 and 8,021.30 is: 11,973.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128.46 : 13,626.66 = 8,021.30 : x
  2. Step 2: Convert to fraction form
    9,128.46/13,626.66 = 8,021.30/x
  3. Step 3: Cross multiply
    9,128.46x = 13,626.66 × 8,021.30
  4. Step 4: Simplify right side
    9,128.46x = 109,303,459.72
  5. Step 5: Solve for x
    x = 109,303,459.72/9,128.46
  6. Step 6: Final answer
    x = 11,973.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.