Home / 12,015.47-18,026.44-10,858.79

Finding the Fourth Proportional to 12,015.47, 18,026.44 and 10,858.79

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Solution

The fourth proportional to 12,015.47, 18,026.44 and 10,858.79 is: 16,291.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,015.47 : 18,026.44 = 10,858.79 : x
  2. Step 2: Convert to fraction form
    12,015.47/18,026.44 = 10,858.79/x
  3. Step 3: Cross multiply
    12,015.47x = 18,026.44 × 10,858.79
  4. Step 4: Simplify right side
    12,015.47x = 195,745,236.28
  5. Step 5: Solve for x
    x = 195,745,236.28/12,015.47
  6. Step 6: Final answer
    x = 16,291.11

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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.