Home / 15,835.06-21,852.45-8,664.84

Finding the Fourth Proportional to 15,835.06, 21,852.45 and 8,664.84

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Solution

The fourth proportional to 15,835.06, 21,852.45 and 8,664.84 is: 11,957.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,835.06 : 21,852.45 = 8,664.84 : x
  2. Step 2: Convert to fraction form
    15,835.06/21,852.45 = 8,664.84/x
  3. Step 3: Cross multiply
    15,835.06x = 21,852.45 × 8,664.84
  4. Step 4: Simplify right side
    15,835.06x = 189,347,982.86
  5. Step 5: Solve for x
    x = 189,347,982.86/15,835.06
  6. Step 6: Final answer
    x = 11,957.52

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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.