Home / 18,267.61-27,399.64-12,382.32

Finding the Fourth Proportional to 18,267.61, 27,399.64 and 12,382.32

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Solution

The fourth proportional to 18,267.61, 27,399.64 and 12,382.32 is: 18,572.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,267.61 : 27,399.64 = 12,382.32 : x
  2. Step 2: Convert to fraction form
    18,267.61/27,399.64 = 12,382.32/x
  3. Step 3: Cross multiply
    18,267.61x = 27,399.64 × 12,382.32
  4. Step 4: Simplify right side
    18,267.61x = 339,271,040.96
  5. Step 5: Solve for x
    x = 339,271,040.96/18,267.61
  6. Step 6: Final answer
    x = 18,572.27

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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.