Home / 15,842.35-21,847.48-11,818.06

Finding the Fourth Proportional to 15,842.35, 21,847.48 and 11,818.06

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Solution

The fourth proportional to 15,842.35, 21,847.48 and 11,818.06 is: 16,297.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,842.35 : 21,847.48 = 11,818.06 : x
  2. Step 2: Convert to fraction form
    15,842.35/21,847.48 = 11,818.06/x
  3. Step 3: Cross multiply
    15,842.35x = 21,847.48 × 11,818.06
  4. Step 4: Simplify right side
    15,842.35x = 258,194,829.49
  5. Step 5: Solve for x
    x = 258,194,829.49/15,842.35
  6. Step 6: Final answer
    x = 16,297.76

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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.