Home / 7,216.60-9,959.04-4,072.18

Finding the Fourth Proportional to 7,216.60, 9,959.04 and 4,072.18

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Solution

The fourth proportional to 7,216.60, 9,959.04 and 4,072.18 is: 5,619.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,216.60 : 9,959.04 = 4,072.18 : x
  2. Step 2: Convert to fraction form
    7,216.60/9,959.04 = 4,072.18/x
  3. Step 3: Cross multiply
    7,216.60x = 9,959.04 × 4,072.18
  4. Step 4: Simplify right side
    7,216.60x = 40,555,003.51
  5. Step 5: Solve for x
    x = 40,555,003.51/7,216.60
  6. Step 6: Final answer
    x = 5,619.68

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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.