Home / 18,764.13-25,895.31-10,380.63

Finding the Fourth Proportional to 18,764.13, 25,895.31 and 10,380.63

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Solution

The fourth proportional to 18,764.13, 25,895.31 and 10,380.63 is: 14,325.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,764.13 : 25,895.31 = 10,380.63 : x
  2. Step 2: Convert to fraction form
    18,764.13/25,895.31 = 10,380.63/x
  3. Step 3: Cross multiply
    18,764.13x = 25,895.31 × 10,380.63
  4. Step 4: Simplify right side
    18,764.13x = 268,809,631.85
  5. Step 5: Solve for x
    x = 268,809,631.85/18,764.13
  6. Step 6: Final answer
    x = 14,325.72

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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.