Home / 7,486.48-11,207.22-4,985.20

Finding the Fourth Proportional to 7,486.48, 11,207.22 and 4,985.20

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Solution

The fourth proportional to 7,486.48, 11,207.22 and 4,985.20 is: 7,462.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,486.48 : 11,207.22 = 4,985.20 : x
  2. Step 2: Convert to fraction form
    7,486.48/11,207.22 = 4,985.20/x
  3. Step 3: Cross multiply
    7,486.48x = 11,207.22 × 4,985.20
  4. Step 4: Simplify right side
    7,486.48x = 55,870,233.14
  5. Step 5: Solve for x
    x = 55,870,233.14/7,486.48
  6. Step 6: Final answer
    x = 7,462.82

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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.