Home / 12,485.28-17,230.08-6,896.16

Finding the Fourth Proportional to 12,485.28, 17,230.08 and 6,896.16

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Solution

The fourth proportional to 12,485.28, 17,230.08 and 6,896.16 is: 9,516.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485.28 : 17,230.08 = 6,896.16 : x
  2. Step 2: Convert to fraction form
    12,485.28/17,230.08 = 6,896.16/x
  3. Step 3: Cross multiply
    12,485.28x = 17,230.08 × 6,896.16
  4. Step 4: Simplify right side
    12,485.28x = 118,821,388.49
  5. Step 5: Solve for x
    x = 118,821,388.49/12,485.28
  6. Step 6: Final answer
    x = 9,516.92

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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.