Home / 12,661.08-18,973.78-5,990.46

Finding the Fourth Proportional to 12,661.08, 18,973.78 and 5,990.46

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Solution

The fourth proportional to 12,661.08, 18,973.78 and 5,990.46 is: 8,977.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,661.08 : 18,973.78 = 5,990.46 : x
  2. Step 2: Convert to fraction form
    12,661.08/18,973.78 = 5,990.46/x
  3. Step 3: Cross multiply
    12,661.08x = 18,973.78 × 5,990.46
  4. Step 4: Simplify right side
    12,661.08x = 113,661,670.14
  5. Step 5: Solve for x
    x = 113,661,670.14/12,661.08
  6. Step 6: Final answer
    x = 8,977.25

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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.