Home / 9,509.75-13,123.50-5,318

Finding the Fourth Proportional to 9,509.75, 13,123.50 and 5,318

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Solution

The fourth proportional to 9,509.75, 13,123.50 and 5,318 is: 7,338.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,509.75 : 13,123.50 = 5,318 : x
  2. Step 2: Convert to fraction form
    9,509.75/13,123.50 = 5,318/x
  3. Step 3: Cross multiply
    9,509.75x = 13,123.50 × 5,318
  4. Step 4: Simplify right side
    9,509.75x = 69,790,773
  5. Step 5: Solve for x
    x = 69,790,773/9,509.75
  6. Step 6: Final answer
    x = 7,338.87

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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.