Home / 11,639.12-16,050.96-8,982.32

Finding the Fourth Proportional to 11,639.12, 16,050.96 and 8,982.32

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Solution

The fourth proportional to 11,639.12, 16,050.96 and 8,982.32 is: 12,387.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,639.12 : 16,050.96 = 8,982.32 : x
  2. Step 2: Convert to fraction form
    11,639.12/16,050.96 = 8,982.32/x
  3. Step 3: Cross multiply
    11,639.12x = 16,050.96 × 8,982.32
  4. Step 4: Simplify right side
    11,639.12x = 144,174,859.03
  5. Step 5: Solve for x
    x = 144,174,859.03/11,639.12
  6. Step 6: Final answer
    x = 12,387.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.