Home / 8,555.12-11,805.60-4,828.88

Finding the Fourth Proportional to 8,555.12, 11,805.60 and 4,828.88

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Solution

The fourth proportional to 8,555.12, 11,805.60 and 4,828.88 is: 6,663.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.12 : 11,805.60 = 4,828.88 : x
  2. Step 2: Convert to fraction form
    8,555.12/11,805.60 = 4,828.88/x
  3. Step 3: Cross multiply
    8,555.12x = 11,805.60 × 4,828.88
  4. Step 4: Simplify right side
    8,555.12x = 57,007,825.73
  5. Step 5: Solve for x
    x = 57,007,825.73/8,555.12
  6. Step 6: Final answer
    x = 6,663.59

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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.