Home / 9,921-13,690.96-5,444.84

Finding the Fourth Proportional to 9,921, 13,690.96 and 5,444.84

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Solution

The fourth proportional to 9,921, 13,690.96 and 5,444.84 is: 7,513.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,921 : 13,690.96 = 5,444.84 : x
  2. Step 2: Convert to fraction form
    9,921/13,690.96 = 5,444.84/x
  3. Step 3: Cross multiply
    9,921x = 13,690.96 × 5,444.84
  4. Step 4: Simplify right side
    9,921x = 74,545,086.65
  5. Step 5: Solve for x
    x = 74,545,086.65/9,921
  6. Step 6: Final answer
    x = 7,513.87

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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.