Home / 11,886.07-16,410.51-7,638.77

Finding the Fourth Proportional to 11,886.07, 16,410.51 and 7,638.77

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Solution

The fourth proportional to 11,886.07, 16,410.51 and 7,638.77 is: 10,546.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,886.07 : 16,410.51 = 7,638.77 : x
  2. Step 2: Convert to fraction form
    11,886.07/16,410.51 = 7,638.77/x
  3. Step 3: Cross multiply
    11,886.07x = 16,410.51 × 7,638.77
  4. Step 4: Simplify right side
    11,886.07x = 125,356,029.42
  5. Step 5: Solve for x
    x = 125,356,029.42/11,886.07
  6. Step 6: Final answer
    x = 10,546.47

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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.