Home / 7,990.06-11,985.18-4,479.52

Finding the Fourth Proportional to 7,990.06, 11,985.18 and 4,479.52

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Solution

The fourth proportional to 7,990.06, 11,985.18 and 4,479.52 is: 6,719.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990.06 : 11,985.18 = 4,479.52 : x
  2. Step 2: Convert to fraction form
    7,990.06/11,985.18 = 4,479.52/x
  3. Step 3: Cross multiply
    7,990.06x = 11,985.18 × 4,479.52
  4. Step 4: Simplify right side
    7,990.06x = 53,687,853.51
  5. Step 5: Solve for x
    x = 53,687,853.51/7,990.06
  6. Step 6: Final answer
    x = 6,719.33

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Similar ratio
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1.5x scale

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.