Home / 12,485.60-17,228.88-6,896.24

Finding the Fourth Proportional to 12,485.60, 17,228.88 and 6,896.24

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Solution

The fourth proportional to 12,485.60, 17,228.88 and 6,896.24 is: 9,516.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,485.60 : 17,228.88 = 6,896.24 : x
  2. Step 2: Convert to fraction form
    12,485.60/17,228.88 = 6,896.24/x
  3. Step 3: Cross multiply
    12,485.60x = 17,228.88 × 6,896.24
  4. Step 4: Simplify right side
    12,485.60x = 118,814,491.41
  5. Step 5: Solve for x
    x = 118,814,491.41/12,485.60
  6. Step 6: Final answer
    x = 9,516.12

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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.