Home / 12,356.56-18,533.49-4,458.79

Finding the Fourth Proportional to 12,356.56, 18,533.49 and 4,458.79

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Solution

The fourth proportional to 12,356.56, 18,533.49 and 4,458.79 is: 6,687.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356.56 : 18,533.49 = 4,458.79 : x
  2. Step 2: Convert to fraction form
    12,356.56/18,533.49 = 4,458.79/x
  3. Step 3: Cross multiply
    12,356.56x = 18,533.49 × 4,458.79
  4. Step 4: Simplify right side
    12,356.56x = 82,636,939.88
  5. Step 5: Solve for x
    x = 82,636,939.88/12,356.56
  6. Step 6: Final answer
    x = 6,687.70

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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.