Home / 13,128.06-18,113.46-8,022.26

Finding the Fourth Proportional to 13,128.06, 18,113.46 and 8,022.26

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Solution

The fourth proportional to 13,128.06, 18,113.46 and 8,022.26 is: 11,068.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,128.06 : 18,113.46 = 8,022.26 : x
  2. Step 2: Convert to fraction form
    13,128.06/18,113.46 = 8,022.26/x
  3. Step 3: Cross multiply
    13,128.06x = 18,113.46 × 8,022.26
  4. Step 4: Simplify right side
    13,128.06x = 145,310,795.05
  5. Step 5: Solve for x
    x = 145,310,795.05/13,128.06
  6. Step 6: Final answer
    x = 11,068.72

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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.