Home / 12,366.72-18,547.20-5,786.64

Finding the Fourth Proportional to 12,366.72, 18,547.20 and 5,786.64

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Solution

The fourth proportional to 12,366.72, 18,547.20 and 5,786.64 is: 8,678.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,366.72 : 18,547.20 = 5,786.64 : x
  2. Step 2: Convert to fraction form
    12,366.72/18,547.20 = 5,786.64/x
  3. Step 3: Cross multiply
    12,366.72x = 18,547.20 × 5,786.64
  4. Step 4: Simplify right side
    12,366.72x = 107,325,969.41
  5. Step 5: Solve for x
    x = 107,325,969.41/12,366.72
  6. Step 6: Final answer
    x = 8,678.61

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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.