Home / 7,985.94-11,020.48-4,449.16

Finding the Fourth Proportional to 7,985.94, 11,020.48 and 4,449.16

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Solution

The fourth proportional to 7,985.94, 11,020.48 and 4,449.16 is: 6,139.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,985.94 : 11,020.48 = 4,449.16 : x
  2. Step 2: Convert to fraction form
    7,985.94/11,020.48 = 4,449.16/x
  3. Step 3: Cross multiply
    7,985.94x = 11,020.48 × 4,449.16
  4. Step 4: Simplify right side
    7,985.94x = 49,031,878.80
  5. Step 5: Solve for x
    x = 49,031,878.80/7,985.94
  6. Step 6: Final answer
    x = 6,139.78

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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.