Home / 11,427.08-15,762.80-8,236.79

Finding the Fourth Proportional to 11,427.08, 15,762.80 and 8,236.79

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Solution

The fourth proportional to 11,427.08, 15,762.80 and 8,236.79 is: 11,362.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,427.08 : 15,762.80 = 8,236.79 : x
  2. Step 2: Convert to fraction form
    11,427.08/15,762.80 = 8,236.79/x
  3. Step 3: Cross multiply
    11,427.08x = 15,762.80 × 8,236.79
  4. Step 4: Simplify right side
    11,427.08x = 129,834,874.30
  5. Step 5: Solve for x
    x = 129,834,874.30/11,427.08
  6. Step 6: Final answer
    x = 11,362.04

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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.