Home / 12,653.55-18,974.79-4,331.34

Finding the Fourth Proportional to 12,653.55, 18,974.79 and 4,331.34

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Solution

The fourth proportional to 12,653.55, 18,974.79 and 4,331.34 is: 6,495.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,653.55 : 18,974.79 = 4,331.34 : x
  2. Step 2: Convert to fraction form
    12,653.55/18,974.79 = 4,331.34/x
  3. Step 3: Cross multiply
    12,653.55x = 18,974.79 × 4,331.34
  4. Step 4: Simplify right side
    12,653.55x = 82,186,266.92
  5. Step 5: Solve for x
    x = 82,186,266.92/12,653.55
  6. Step 6: Final answer
    x = 6,495.12

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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.