Home / 12,491.54-18,734.76-4,591.34

Finding the Fourth Proportional to 12,491.54, 18,734.76 and 4,591.34

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Solution

The fourth proportional to 12,491.54, 18,734.76 and 4,591.34 is: 6,886.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,491.54 : 18,734.76 = 4,591.34 : x
  2. Step 2: Convert to fraction form
    12,491.54/18,734.76 = 4,591.34/x
  3. Step 3: Cross multiply
    12,491.54x = 18,734.76 × 4,591.34
  4. Step 4: Simplify right side
    12,491.54x = 86,017,652.98
  5. Step 5: Solve for x
    x = 86,017,652.98/12,491.54
  6. Step 6: Final answer
    x = 6,886.07

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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.