Home / 15,659.91-21,610.67-8,586.45

Finding the Fourth Proportional to 15,659.91, 21,610.67 and 8,586.45

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Solution

The fourth proportional to 15,659.91, 21,610.67 and 8,586.45 is: 11,849.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,659.91 : 21,610.67 = 8,586.45 : x
  2. Step 2: Convert to fraction form
    15,659.91/21,610.67 = 8,586.45/x
  3. Step 3: Cross multiply
    15,659.91x = 21,610.67 × 8,586.45
  4. Step 4: Simplify right side
    15,659.91x = 185,558,894.49
  5. Step 5: Solve for x
    x = 185,558,894.49/15,659.91
  6. Step 6: Final answer
    x = 11,849.30

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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.