Home / 13,245.76-19,873.49-12,463.30

Finding the Fourth Proportional to 13,245.76, 19,873.49 and 12,463.30

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Solution

The fourth proportional to 13,245.76, 19,873.49 and 12,463.30 is: 18,699.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,245.76 : 19,873.49 = 12,463.30 : x
  2. Step 2: Convert to fraction form
    13,245.76/19,873.49 = 12,463.30/x
  3. Step 3: Cross multiply
    13,245.76x = 19,873.49 × 12,463.30
  4. Step 4: Simplify right side
    13,245.76x = 247,689,267.92
  5. Step 5: Solve for x
    x = 247,689,267.92/13,245.76
  6. Step 6: Final answer
    x = 18,699.51

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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.