Home / 14,120.64-19,489.32-8,153.28

Finding the Fourth Proportional to 14,120.64, 19,489.32 and 8,153.28

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Solution

The fourth proportional to 14,120.64, 19,489.32 and 8,153.28 is: 11,253.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,120.64 : 19,489.32 = 8,153.28 : x
  2. Step 2: Convert to fraction form
    14,120.64/19,489.32 = 8,153.28/x
  3. Step 3: Cross multiply
    14,120.64x = 19,489.32 × 8,153.28
  4. Step 4: Simplify right side
    14,120.64x = 158,901,882.97
  5. Step 5: Solve for x
    x = 158,901,882.97/14,120.64
  6. Step 6: Final answer
    x = 11,253.16

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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.