Home / 8,215.56-11,332.98-5,226.12

Finding the Fourth Proportional to 8,215.56, 11,332.98 and 5,226.12

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Solution

The fourth proportional to 8,215.56, 11,332.98 and 5,226.12 is: 7,209.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.56 : 11,332.98 = 5,226.12 : x
  2. Step 2: Convert to fraction form
    8,215.56/11,332.98 = 5,226.12/x
  3. Step 3: Cross multiply
    8,215.56x = 11,332.98 × 5,226.12
  4. Step 4: Simplify right side
    8,215.56x = 59,227,513.44
  5. Step 5: Solve for x
    x = 59,227,513.44/8,215.56
  6. Step 6: Final answer
    x = 7,209.19

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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.