Home / 9,899.73-13,662.81-6,125.40

Finding the Fourth Proportional to 9,899.73, 13,662.81 and 6,125.40

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Solution

The fourth proportional to 9,899.73, 13,662.81 and 6,125.40 is: 8,453.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,899.73 : 13,662.81 = 6,125.40 : x
  2. Step 2: Convert to fraction form
    9,899.73/13,662.81 = 6,125.40/x
  3. Step 3: Cross multiply
    9,899.73x = 13,662.81 × 6,125.40
  4. Step 4: Simplify right side
    9,899.73x = 83,690,176.37
  5. Step 5: Solve for x
    x = 83,690,176.37/9,899.73
  6. Step 6: Final answer
    x = 8,453.78

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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.