Home / 12,012.56-16,588.74-11,358.08

Finding the Fourth Proportional to 12,012.56, 16,588.74 and 11,358.08

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Solution

The fourth proportional to 12,012.56, 16,588.74 and 11,358.08 is: 15,684.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,012.56 : 16,588.74 = 11,358.08 : x
  2. Step 2: Convert to fraction form
    12,012.56/16,588.74 = 11,358.08/x
  3. Step 3: Cross multiply
    12,012.56x = 16,588.74 × 11,358.08
  4. Step 4: Simplify right side
    12,012.56x = 188,416,236.02
  5. Step 5: Solve for x
    x = 188,416,236.02/12,012.56
  6. Step 6: Final answer
    x = 15,684.94

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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.