Home / 12,456.48-18,680.64-4,134.26

Finding the Fourth Proportional to 12,456.48, 18,680.64 and 4,134.26

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Solution

The fourth proportional to 12,456.48, 18,680.64 and 4,134.26 is: 6,200.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,456.48 : 18,680.64 = 4,134.26 : x
  2. Step 2: Convert to fraction form
    12,456.48/18,680.64 = 4,134.26/x
  3. Step 3: Cross multiply
    12,456.48x = 18,680.64 × 4,134.26
  4. Step 4: Simplify right side
    12,456.48x = 77,230,529.32
  5. Step 5: Solve for x
    x = 77,230,529.32/12,456.48
  6. Step 6: Final answer
    x = 6,200.03

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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.