Home / 7,215.16-9,955.94-4,028.08

Finding the Fourth Proportional to 7,215.16, 9,955.94 and 4,028.08

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Solution

The fourth proportional to 7,215.16, 9,955.94 and 4,028.08 is: 5,558.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,215.16 : 9,955.94 = 4,028.08 : x
  2. Step 2: Convert to fraction form
    7,215.16/9,955.94 = 4,028.08/x
  3. Step 3: Cross multiply
    7,215.16x = 9,955.94 × 4,028.08
  4. Step 4: Simplify right side
    7,215.16x = 40,103,322.80
  5. Step 5: Solve for x
    x = 40,103,322.80/7,215.16
  6. Step 6: Final answer
    x = 5,558.20

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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.