Home / 7,985.51-11,020.28-4,448.94

Finding the Fourth Proportional to 7,985.51, 11,020.28 and 4,448.94

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Solution

The fourth proportional to 7,985.51, 11,020.28 and 4,448.94 is: 6,139.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,985.51 : 11,020.28 = 4,448.94 : x
  2. Step 2: Convert to fraction form
    7,985.51/11,020.28 = 4,448.94/x
  3. Step 3: Cross multiply
    7,985.51x = 11,020.28 × 4,448.94
  4. Step 4: Simplify right side
    7,985.51x = 49,028,564.50
  5. Step 5: Solve for x
    x = 49,028,564.50/7,985.51
  6. Step 6: Final answer
    x = 6,139.69

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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.