Home / 7,539.67-10,412.72-6,715.09

Finding the Fourth Proportional to 7,539.67, 10,412.72 and 6,715.09

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Solution

The fourth proportional to 7,539.67, 10,412.72 and 6,715.09 is: 9,273.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,539.67 : 10,412.72 = 6,715.09 : x
  2. Step 2: Convert to fraction form
    7,539.67/10,412.72 = 6,715.09/x
  3. Step 3: Cross multiply
    7,539.67x = 10,412.72 × 6,715.09
  4. Step 4: Simplify right side
    7,539.67x = 69,922,351.94
  5. Step 5: Solve for x
    x = 69,922,351.94/7,539.67
  6. Step 6: Final answer
    x = 9,273.93

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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.