Home / 11,485.60-15,849.76-6,450.72

Finding the Fourth Proportional to 11,485.60, 15,849.76 and 6,450.72

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Solution

The fourth proportional to 11,485.60, 15,849.76 and 6,450.72 is: 8,901.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,485.60 : 15,849.76 = 6,450.72 : x
  2. Step 2: Convert to fraction form
    11,485.60/15,849.76 = 6,450.72/x
  3. Step 3: Cross multiply
    11,485.60x = 15,849.76 × 6,450.72
  4. Step 4: Simplify right side
    11,485.60x = 102,242,363.83
  5. Step 5: Solve for x
    x = 102,242,363.83/11,485.60
  6. Step 6: Final answer
    x = 8,901.79

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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.