Home / 8,228.21-11,354.05-4,871.17

Finding the Fourth Proportional to 8,228.21, 11,354.05 and 4,871.17

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Solution

The fourth proportional to 8,228.21, 11,354.05 and 4,871.17 is: 6,721.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,228.21 : 11,354.05 = 4,871.17 : x
  2. Step 2: Convert to fraction form
    8,228.21/11,354.05 = 4,871.17/x
  3. Step 3: Cross multiply
    8,228.21x = 11,354.05 × 4,871.17
  4. Step 4: Simplify right side
    8,228.21x = 55,307,507.74
  5. Step 5: Solve for x
    x = 55,307,507.74/8,228.21
  6. Step 6: Final answer
    x = 6,721.69

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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.