Home / 8,970.35-13,427.78-6,633.09

Finding the Fourth Proportional to 8,970.35, 13,427.78 and 6,633.09

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Solution

The fourth proportional to 8,970.35, 13,427.78 and 6,633.09 is: 9,929.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,970.35 : 13,427.78 = 6,633.09 : x
  2. Step 2: Convert to fraction form
    8,970.35/13,427.78 = 6,633.09/x
  3. Step 3: Cross multiply
    8,970.35x = 13,427.78 × 6,633.09
  4. Step 4: Simplify right side
    8,970.35x = 89,067,640.07
  5. Step 5: Solve for x
    x = 89,067,640.07/8,970.35
  6. Step 6: Final answer
    x = 9,929.12

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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.