Home / 13,269.24-18,318.60-10,278.36

Finding the Fourth Proportional to 13,269.24, 18,318.60 and 10,278.36

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Solution

The fourth proportional to 13,269.24, 18,318.60 and 10,278.36 is: 14,189.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,269.24 : 18,318.60 = 10,278.36 : x
  2. Step 2: Convert to fraction form
    13,269.24/18,318.60 = 10,278.36/x
  3. Step 3: Cross multiply
    13,269.24x = 18,318.60 × 10,278.36
  4. Step 4: Simplify right side
    13,269.24x = 188,285,165.50
  5. Step 5: Solve for x
    x = 188,285,165.50/13,269.24
  6. Step 6: Final answer
    x = 14,189.60

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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.