Home / 12,400.32-18,600.09-3,040.37

Finding the Fourth Proportional to 12,400.32, 18,600.09 and 3,040.37

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Solution

The fourth proportional to 12,400.32, 18,600.09 and 3,040.37 is: 4,560.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,400.32 : 18,600.09 = 3,040.37 : x
  2. Step 2: Convert to fraction form
    12,400.32/18,600.09 = 3,040.37/x
  3. Step 3: Cross multiply
    12,400.32x = 18,600.09 × 3,040.37
  4. Step 4: Simplify right side
    12,400.32x = 56,551,062.63
  5. Step 5: Solve for x
    x = 56,551,062.63/12,400.32
  6. Step 6: Final answer
    x = 4,560.45

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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.