Home / 7,620.96-11,430.60-5,171.52

Finding the Fourth Proportional to 7,620.96, 11,430.60 and 5,171.52

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Solution

The fourth proportional to 7,620.96, 11,430.60 and 5,171.52 is: 7,756.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.96 : 11,430.60 = 5,171.52 : x
  2. Step 2: Convert to fraction form
    7,620.96/11,430.60 = 5,171.52/x
  3. Step 3: Cross multiply
    7,620.96x = 11,430.60 × 5,171.52
  4. Step 4: Simplify right side
    7,620.96x = 59,113,576.51
  5. Step 5: Solve for x
    x = 59,113,576.51/7,620.96
  6. Step 6: Final answer
    x = 7,756.71

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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.