Home / 10,228.87-14,054.67-8,129.35

Finding the Fourth Proportional to 10,228.87, 14,054.67 and 8,129.35

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Solution

The fourth proportional to 10,228.87, 14,054.67 and 8,129.35 is: 11,169.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,228.87 : 14,054.67 = 8,129.35 : x
  2. Step 2: Convert to fraction form
    10,228.87/14,054.67 = 8,129.35/x
  3. Step 3: Cross multiply
    10,228.87x = 14,054.67 × 8,129.35
  4. Step 4: Simplify right side
    10,228.87x = 114,255,311.24
  5. Step 5: Solve for x
    x = 114,255,311.24/10,228.87
  6. Step 6: Final answer
    x = 11,169.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.