Home / 7,969.40-11,955.47-2,423.30

Finding the Fourth Proportional to 7,969.40, 11,955.47 and 2,423.30

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Solution

The fourth proportional to 7,969.40, 11,955.47 and 2,423.30 is: 3,635.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,969.40 : 11,955.47 = 2,423.30 : x
  2. Step 2: Convert to fraction form
    7,969.40/11,955.47 = 2,423.30/x
  3. Step 3: Cross multiply
    7,969.40x = 11,955.47 × 2,423.30
  4. Step 4: Simplify right side
    7,969.40x = 28,971,618.56
  5. Step 5: Solve for x
    x = 28,971,618.56/7,969.40
  6. Step 6: Final answer
    x = 3,635.36

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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.