Home / 11,256.63-16,875.86-4,687.76

Finding the Fourth Proportional to 11,256.63, 16,875.86 and 4,687.76

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Solution

The fourth proportional to 11,256.63, 16,875.86 and 4,687.76 is: 7,027.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,256.63 : 16,875.86 = 4,687.76 : x
  2. Step 2: Convert to fraction form
    11,256.63/16,875.86 = 4,687.76/x
  3. Step 3: Cross multiply
    11,256.63x = 16,875.86 × 4,687.76
  4. Step 4: Simplify right side
    11,256.63x = 79,109,873.66
  5. Step 5: Solve for x
    x = 79,109,873.66/11,256.63
  6. Step 6: Final answer
    x = 7,027.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.