Home / 15,809.45-21,819.58-9,436.37

Finding the Fourth Proportional to 15,809.45, 21,819.58 and 9,436.37

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Solution

The fourth proportional to 15,809.45, 21,819.58 and 9,436.37 is: 13,023.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,809.45 : 21,819.58 = 9,436.37 : x
  2. Step 2: Convert to fraction form
    15,809.45/21,819.58 = 9,436.37/x
  3. Step 3: Cross multiply
    15,809.45x = 21,819.58 × 9,436.37
  4. Step 4: Simplify right side
    15,809.45x = 205,897,497.44
  5. Step 5: Solve for x
    x = 205,897,497.44/15,809.45
  6. Step 6: Final answer
    x = 13,023.70

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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.