Home / 7,231.04-9,975.60-5,109.68

Finding the Fourth Proportional to 7,231.04, 9,975.60 and 5,109.68

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Solution

The fourth proportional to 7,231.04, 9,975.60 and 5,109.68 is: 7,049.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,231.04 : 9,975.60 = 5,109.68 : x
  2. Step 2: Convert to fraction form
    7,231.04/9,975.60 = 5,109.68/x
  3. Step 3: Cross multiply
    7,231.04x = 9,975.60 × 5,109.68
  4. Step 4: Simplify right side
    7,231.04x = 50,972,123.81
  5. Step 5: Solve for x
    x = 50,972,123.81/7,231.04
  6. Step 6: Final answer
    x = 7,049.07

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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.