Home / 15,809.11-21,816.27-8,735.38

Finding the Fourth Proportional to 15,809.11, 21,816.27 and 8,735.38

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Solution

The fourth proportional to 15,809.11, 21,816.27 and 8,735.38 is: 12,054.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,809.11 : 21,816.27 = 8,735.38 : x
  2. Step 2: Convert to fraction form
    15,809.11/21,816.27 = 8,735.38/x
  3. Step 3: Cross multiply
    15,809.11x = 21,816.27 × 8,735.38
  4. Step 4: Simplify right side
    15,809.11x = 190,573,408.63
  5. Step 5: Solve for x
    x = 190,573,408.63/15,809.11
  6. Step 6: Final answer
    x = 12,054.66

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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.