Home / 11,336.43-15,643.20-10,500.51

Finding the Fourth Proportional to 11,336.43, 15,643.20 and 10,500.51

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Solution

The fourth proportional to 11,336.43, 15,643.20 and 10,500.51 is: 14,489.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,336.43 : 15,643.20 = 10,500.51 : x
  2. Step 2: Convert to fraction form
    11,336.43/15,643.20 = 10,500.51/x
  3. Step 3: Cross multiply
    11,336.43x = 15,643.20 × 10,500.51
  4. Step 4: Simplify right side
    11,336.43x = 164,261,676.07
  5. Step 5: Solve for x
    x = 164,261,676.07/11,336.43
  6. Step 6: Final answer
    x = 14,489.71

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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.