Home / 12,511.96-17,246.49-8,477.56

Finding the Fourth Proportional to 12,511.96, 17,246.49 and 8,477.56

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Solution

The fourth proportional to 12,511.96, 17,246.49 and 8,477.56 is: 11,685.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,511.96 : 17,246.49 = 8,477.56 : x
  2. Step 2: Convert to fraction form
    12,511.96/17,246.49 = 8,477.56/x
  3. Step 3: Cross multiply
    12,511.96x = 17,246.49 × 8,477.56
  4. Step 4: Simplify right side
    12,511.96x = 146,208,153.76
  5. Step 5: Solve for x
    x = 146,208,153.76/12,511.96
  6. Step 6: Final answer
    x = 11,685.47

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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.