Home / 9,509.87-13,123.54-5,318.12

Finding the Fourth Proportional to 9,509.87, 13,123.54 and 5,318.12

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Solution

The fourth proportional to 9,509.87, 13,123.54 and 5,318.12 is: 7,338.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,509.87 : 13,123.54 = 5,318.12 : x
  2. Step 2: Convert to fraction form
    9,509.87/13,123.54 = 5,318.12/x
  3. Step 3: Cross multiply
    9,509.87x = 13,123.54 × 5,318.12
  4. Step 4: Simplify right side
    9,509.87x = 69,792,481.63
  5. Step 5: Solve for x
    x = 69,792,481.63/9,509.87
  6. Step 6: Final answer
    x = 7,338.96

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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.