Home / 18,768.96-25,900.80-10,385.52

Finding the Fourth Proportional to 18,768.96, 25,900.80 and 10,385.52

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Solution

The fourth proportional to 18,768.96, 25,900.80 and 10,385.52 is: 14,331.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,768.96 : 25,900.80 = 10,385.52 : x
  2. Step 2: Convert to fraction form
    18,768.96/25,900.80 = 10,385.52/x
  3. Step 3: Cross multiply
    18,768.96x = 25,900.80 × 10,385.52
  4. Step 4: Simplify right side
    18,768.96x = 268,993,276.42
  5. Step 5: Solve for x
    x = 268,993,276.42/18,768.96
  6. Step 6: Final answer
    x = 14,331.82

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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.