Home / 6,243.79-9,320.14-5,455.58

Finding the Fourth Proportional to 6,243.79, 9,320.14 and 5,455.58

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Solution

The fourth proportional to 6,243.79, 9,320.14 and 5,455.58 is: 8,143.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,243.79 : 9,320.14 = 5,455.58 : x
  2. Step 2: Convert to fraction form
    6,243.79/9,320.14 = 5,455.58/x
  3. Step 3: Cross multiply
    6,243.79x = 9,320.14 × 5,455.58
  4. Step 4: Simplify right side
    6,243.79x = 50,846,767.16
  5. Step 5: Solve for x
    x = 50,846,767.16/6,243.79
  6. Step 6: Final answer
    x = 8,143.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.