Home / 12,415.24-18,606.44-9,112.84

Finding the Fourth Proportional to 12,415.24, 18,606.44 and 9,112.84

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Solution

The fourth proportional to 12,415.24, 18,606.44 and 9,112.84 is: 13,657.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,415.24 : 18,606.44 = 9,112.84 : x
  2. Step 2: Convert to fraction form
    12,415.24/18,606.44 = 9,112.84/x
  3. Step 3: Cross multiply
    12,415.24x = 18,606.44 × 9,112.84
  4. Step 4: Simplify right side
    12,415.24x = 169,557,510.69
  5. Step 5: Solve for x
    x = 169,557,510.69/12,415.24
  6. Step 6: Final answer
    x = 13,657.21

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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.