Home / 15,660.08-21,610.80-8,586.56

Finding the Fourth Proportional to 15,660.08, 21,610.80 and 8,586.56

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Solution

The fourth proportional to 15,660.08, 21,610.80 and 8,586.56 is: 11,849.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,660.08 : 21,610.80 = 8,586.56 : x
  2. Step 2: Convert to fraction form
    15,660.08/21,610.80 = 8,586.56/x
  3. Step 3: Cross multiply
    15,660.08x = 21,610.80 × 8,586.56
  4. Step 4: Simplify right side
    15,660.08x = 185,562,430.85
  5. Step 5: Solve for x
    x = 185,562,430.85/15,660.08
  6. Step 6: Final answer
    x = 11,849.39

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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.