Home / 7,420.88-11,129.16-4,837.52

Finding the Fourth Proportional to 7,420.88, 11,129.16 and 4,837.52

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Solution

The fourth proportional to 7,420.88, 11,129.16 and 4,837.52 is: 7,254.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.88 : 11,129.16 = 4,837.52 : x
  2. Step 2: Convert to fraction form
    7,420.88/11,129.16 = 4,837.52/x
  3. Step 3: Cross multiply
    7,420.88x = 11,129.16 × 4,837.52
  4. Step 4: Simplify right side
    7,420.88x = 53,837,534.08
  5. Step 5: Solve for x
    x = 53,837,534.08/7,420.88
  6. Step 6: Final answer
    x = 7,254.87

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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.