Home / 7,216.96-9,959.36-4,073.28

Finding the Fourth Proportional to 7,216.96, 9,959.36 and 4,073.28

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Solution

The fourth proportional to 7,216.96, 9,959.36 and 4,073.28 is: 5,621.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,216.96 : 9,959.36 = 4,073.28 : x
  2. Step 2: Convert to fraction form
    7,216.96/9,959.36 = 4,073.28/x
  3. Step 3: Cross multiply
    7,216.96x = 9,959.36 × 4,073.28
  4. Step 4: Simplify right side
    7,216.96x = 40,567,261.90
  5. Step 5: Solve for x
    x = 40,567,261.90/7,216.96
  6. Step 6: Final answer
    x = 5,621.10

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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.