Home / 9,248.88-12,760.39-5,215.21

Finding the Fourth Proportional to 9,248.88, 12,760.39 and 5,215.21

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Solution

The fourth proportional to 9,248.88, 12,760.39 and 5,215.21 is: 7,195.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,248.88 : 12,760.39 = 5,215.21 : x
  2. Step 2: Convert to fraction form
    9,248.88/12,760.39 = 5,215.21/x
  3. Step 3: Cross multiply
    9,248.88x = 12,760.39 × 5,215.21
  4. Step 4: Simplify right side
    9,248.88x = 66,548,088.15
  5. Step 5: Solve for x
    x = 66,548,088.15/9,248.88
  6. Step 6: Final answer
    x = 7,195.26

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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.