Home / 8,579.39-11,830.20-7,450.35

Finding the Fourth Proportional to 8,579.39, 11,830.20 and 7,450.35

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Solution

The fourth proportional to 8,579.39, 11,830.20 and 7,450.35 is: 10,273.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,579.39 : 11,830.20 = 7,450.35 : x
  2. Step 2: Convert to fraction form
    8,579.39/11,830.20 = 7,450.35/x
  3. Step 3: Cross multiply
    8,579.39x = 11,830.20 × 7,450.35
  4. Step 4: Simplify right side
    8,579.39x = 88,139,058.27
  5. Step 5: Solve for x
    x = 88,139,058.27/8,579.39
  6. Step 6: Final answer
    x = 10,273.35

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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.