Home / 7,985.89-11,020.54-4,449.23

Finding the Fourth Proportional to 7,985.89, 11,020.54 and 4,449.23

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Solution

The fourth proportional to 7,985.89, 11,020.54 and 4,449.23 is: 6,139.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,985.89 : 11,020.54 = 4,449.23 : x
  2. Step 2: Convert to fraction form
    7,985.89/11,020.54 = 4,449.23/x
  3. Step 3: Cross multiply
    7,985.89x = 11,020.54 × 4,449.23
  4. Step 4: Simplify right side
    7,985.89x = 49,032,862.08
  5. Step 5: Solve for x
    x = 49,032,862.08/7,985.89
  6. Step 6: Final answer
    x = 6,139.94

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1.5x scale

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.