Home / 7,419.94-11,142.64-6,588.88

Finding the Fourth Proportional to 7,419.94, 11,142.64 and 6,588.88

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Solution

The fourth proportional to 7,419.94, 11,142.64 and 6,588.88 is: 9,894.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.94 : 11,142.64 = 6,588.88 : x
  2. Step 2: Convert to fraction form
    7,419.94/11,142.64 = 6,588.88/x
  3. Step 3: Cross multiply
    7,419.94x = 11,142.64 × 6,588.88
  4. Step 4: Simplify right side
    7,419.94x = 73,417,517.84
  5. Step 5: Solve for x
    x = 73,417,517.84/7,419.94
  6. Step 6: Final answer
    x = 9,894.62

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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.