Home / 18,768.40-25,896.54-10,808.50

Finding the Fourth Proportional to 18,768.40, 25,896.54 and 10,808.50

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Solution

The fourth proportional to 18,768.40, 25,896.54 and 10,808.50 is: 14,913.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,768.40 : 25,896.54 = 10,808.50 : x
  2. Step 2: Convert to fraction form
    18,768.40/25,896.54 = 10,808.50/x
  3. Step 3: Cross multiply
    18,768.40x = 25,896.54 × 10,808.50
  4. Step 4: Simplify right side
    18,768.40x = 279,902,752.59
  5. Step 5: Solve for x
    x = 279,902,752.59/18,768.40
  6. Step 6: Final answer
    x = 14,913.51

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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.