Home / 13,219.57-18,245.94-10,342.62

Finding the Fourth Proportional to 13,219.57, 18,245.94 and 10,342.62

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Solution

The fourth proportional to 13,219.57, 18,245.94 and 10,342.62 is: 14,275.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,219.57 : 18,245.94 = 10,342.62 : x
  2. Step 2: Convert to fraction form
    13,219.57/18,245.94 = 10,342.62/x
  3. Step 3: Cross multiply
    13,219.57x = 18,245.94 × 10,342.62
  4. Step 4: Simplify right side
    13,219.57x = 188,710,843.36
  5. Step 5: Solve for x
    x = 188,710,843.36/13,219.57
  6. Step 6: Final answer
    x = 14,275.11

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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.