Home / 14,844.85-20,485.38-8,471.79

Finding the Fourth Proportional to 14,844.85, 20,485.38 and 8,471.79

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Solution

The fourth proportional to 14,844.85, 20,485.38 and 8,471.79 is: 11,690.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,844.85 : 20,485.38 = 8,471.79 : x
  2. Step 2: Convert to fraction form
    14,844.85/20,485.38 = 8,471.79/x
  3. Step 3: Cross multiply
    14,844.85x = 20,485.38 × 8,471.79
  4. Step 4: Simplify right side
    14,844.85x = 173,547,837.43
  5. Step 5: Solve for x
    x = 173,547,837.43/14,844.85
  6. Step 6: Final answer
    x = 11,690.78

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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.