Home / 8,281.89-11,429.01-4,505.13

Finding the Fourth Proportional to 8,281.89, 11,429.01 and 4,505.13

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Solution

The fourth proportional to 8,281.89, 11,429.01 and 4,505.13 is: 6,217.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,281.89 : 11,429.01 = 4,505.13 : x
  2. Step 2: Convert to fraction form
    8,281.89/11,429.01 = 4,505.13/x
  3. Step 3: Cross multiply
    8,281.89x = 11,429.01 × 4,505.13
  4. Step 4: Simplify right side
    8,281.89x = 51,489,175.82
  5. Step 5: Solve for x
    x = 51,489,175.82/8,281.89
  6. Step 6: Final answer
    x = 6,217.08

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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.