Home / 10,427.76-14,379.20-8,525.12

Finding the Fourth Proportional to 10,427.76, 14,379.20 and 8,525.12

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Solution

The fourth proportional to 10,427.76, 14,379.20 and 8,525.12 is: 11,755.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,427.76 : 14,379.20 = 8,525.12 : x
  2. Step 2: Convert to fraction form
    10,427.76/14,379.20 = 8,525.12/x
  3. Step 3: Cross multiply
    10,427.76x = 14,379.20 × 8,525.12
  4. Step 4: Simplify right side
    10,427.76x = 122,584,405.50
  5. Step 5: Solve for x
    x = 122,584,405.50/10,427.76
  6. Step 6: Final answer
    x = 11,755.58

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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.