Home / 10,173.39-15,259.47-2,778.09

Finding the Fourth Proportional to 10,173.39, 15,259.47 and 2,778.09

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Solution

The fourth proportional to 10,173.39, 15,259.47 and 2,778.09 is: 4,166.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,173.39 : 15,259.47 = 2,778.09 : x
  2. Step 2: Convert to fraction form
    10,173.39/15,259.47 = 2,778.09/x
  3. Step 3: Cross multiply
    10,173.39x = 15,259.47 × 2,778.09
  4. Step 4: Simplify right side
    10,173.39x = 42,392,181.01
  5. Step 5: Solve for x
    x = 42,392,181.01/10,173.39
  6. Step 6: Final answer
    x = 4,166.97

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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.