Home / 8,999.38-13,487.55-7,886.26

Finding the Fourth Proportional to 8,999.38, 13,487.55 and 7,886.26

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Solution

The fourth proportional to 8,999.38, 13,487.55 and 7,886.26 is: 11,819.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,999.38 : 13,487.55 = 7,886.26 : x
  2. Step 2: Convert to fraction form
    8,999.38/13,487.55 = 7,886.26/x
  3. Step 3: Cross multiply
    8,999.38x = 13,487.55 × 7,886.26
  4. Step 4: Simplify right side
    8,999.38x = 106,366,326.06
  5. Step 5: Solve for x
    x = 106,366,326.06/8,999.38
  6. Step 6: Final answer
    x = 11,819.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.