Home / 15,822.83-21,835.96-8,749.51

Finding the Fourth Proportional to 15,822.83, 21,835.96 and 8,749.51

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Solution

The fourth proportional to 15,822.83, 21,835.96 and 8,749.51 is: 12,074.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,822.83 : 21,835.96 = 8,749.51 : x
  2. Step 2: Convert to fraction form
    15,822.83/21,835.96 = 8,749.51/x
  3. Step 3: Cross multiply
    15,822.83x = 21,835.96 × 8,749.51
  4. Step 4: Simplify right side
    15,822.83x = 191,053,873.92
  5. Step 5: Solve for x
    x = 191,053,873.92/15,822.83
  6. Step 6: Final answer
    x = 12,074.57

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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.