Home / 9,215.14-12,717-5,236.36

Finding the Fourth Proportional to 9,215.14, 12,717 and 5,236.36

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Solution

The fourth proportional to 9,215.14, 12,717 and 5,236.36 is: 7,226.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,215.14 : 12,717 = 5,236.36 : x
  2. Step 2: Convert to fraction form
    9,215.14/12,717 = 5,236.36/x
  3. Step 3: Cross multiply
    9,215.14x = 12,717 × 5,236.36
  4. Step 4: Simplify right side
    9,215.14x = 66,590,790.12
  5. Step 5: Solve for x
    x = 66,590,790.12/9,215.14
  6. Step 6: Final answer
    x = 7,226.24

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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.