Home / 14,767.78-20,382.70-8,483.62

Finding the Fourth Proportional to 14,767.78, 20,382.70 and 8,483.62

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Solution

The fourth proportional to 14,767.78, 20,382.70 and 8,483.62 is: 11,709.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,767.78 : 20,382.70 = 8,483.62 : x
  2. Step 2: Convert to fraction form
    14,767.78/20,382.70 = 8,483.62/x
  3. Step 3: Cross multiply
    14,767.78x = 20,382.70 × 8,483.62
  4. Step 4: Simplify right side
    14,767.78x = 172,919,081.37
  5. Step 5: Solve for x
    x = 172,919,081.37/14,767.78
  6. Step 6: Final answer
    x = 11,709.21

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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.