Home / 8,554.20-12,809.40-7,577.34

Finding the Fourth Proportional to 8,554.20, 12,809.40 and 7,577.34

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Solution

The fourth proportional to 8,554.20, 12,809.40 and 7,577.34 is: 11,346.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,554.20 : 12,809.40 = 7,577.34 : x
  2. Step 2: Convert to fraction form
    8,554.20/12,809.40 = 7,577.34/x
  3. Step 3: Cross multiply
    8,554.20x = 12,809.40 × 7,577.34
  4. Step 4: Simplify right side
    8,554.20x = 97,061,179.00
  5. Step 5: Solve for x
    x = 97,061,179.00/8,554.20
  6. Step 6: Final answer
    x = 11,346.61

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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.