Home / 11,289.88-15,562.02-8,896.06

Finding the Fourth Proportional to 11,289.88, 15,562.02 and 8,896.06

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Solution

The fourth proportional to 11,289.88, 15,562.02 and 8,896.06 is: 12,262.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,289.88 : 15,562.02 = 8,896.06 : x
  2. Step 2: Convert to fraction form
    11,289.88/15,562.02 = 8,896.06/x
  3. Step 3: Cross multiply
    11,289.88x = 15,562.02 × 8,896.06
  4. Step 4: Simplify right side
    11,289.88x = 138,440,663.64
  5. Step 5: Solve for x
    x = 138,440,663.64/11,289.88
  6. Step 6: Final answer
    x = 12,262.37

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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.