Home / 9,621.38-13,277.40-5,429.54

Finding the Fourth Proportional to 9,621.38, 13,277.40 and 5,429.54

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Solution

The fourth proportional to 9,621.38, 13,277.40 and 5,429.54 is: 7,492.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,621.38 : 13,277.40 = 5,429.54 : x
  2. Step 2: Convert to fraction form
    9,621.38/13,277.40 = 5,429.54/x
  3. Step 3: Cross multiply
    9,621.38x = 13,277.40 × 5,429.54
  4. Step 4: Simplify right side
    9,621.38x = 72,090,174.40
  5. Step 5: Solve for x
    x = 72,090,174.40/9,621.38
  6. Step 6: Final answer
    x = 7,492.71

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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.