Home / 10,555.39-15,828.58-3,159.73

Finding the Fourth Proportional to 10,555.39, 15,828.58 and 3,159.73

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Solution

The fourth proportional to 10,555.39, 15,828.58 and 3,159.73 is: 4,738.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,555.39 : 15,828.58 = 3,159.73 : x
  2. Step 2: Convert to fraction form
    10,555.39/15,828.58 = 3,159.73/x
  3. Step 3: Cross multiply
    10,555.39x = 15,828.58 × 3,159.73
  4. Step 4: Simplify right side
    10,555.39x = 50,014,039.08
  5. Step 5: Solve for x
    x = 50,014,039.08/10,555.39
  6. Step 6: Final answer
    x = 4,738.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.