Home / 7,421.24-11,148.24-4,501.28

Finding the Fourth Proportional to 7,421.24, 11,148.24 and 4,501.28

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Solution

The fourth proportional to 7,421.24, 11,148.24 and 4,501.28 is: 6,761.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421.24 : 11,148.24 = 4,501.28 : x
  2. Step 2: Convert to fraction form
    7,421.24/11,148.24 = 4,501.28/x
  3. Step 3: Cross multiply
    7,421.24x = 11,148.24 × 4,501.28
  4. Step 4: Simplify right side
    7,421.24x = 50,181,349.75
  5. Step 5: Solve for x
    x = 50,181,349.75/7,421.24
  6. Step 6: Final answer
    x = 6,761.86

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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.