Home / 7,212.54-10,804.69-6,428.87

Finding the Fourth Proportional to 7,212.54, 10,804.69 and 6,428.87

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Solution

The fourth proportional to 7,212.54, 10,804.69 and 6,428.87 is: 9,630.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212.54 : 10,804.69 = 6,428.87 : x
  2. Step 2: Convert to fraction form
    7,212.54/10,804.69 = 6,428.87/x
  3. Step 3: Cross multiply
    7,212.54x = 10,804.69 × 6,428.87
  4. Step 4: Simplify right side
    7,212.54x = 69,461,941.93
  5. Step 5: Solve for x
    x = 69,461,941.93/7,212.54
  6. Step 6: Final answer
    x = 9,630.71

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1.5x scale

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.