Home / 18,816.51-25,966.76-10,858.73

Finding the Fourth Proportional to 18,816.51, 25,966.76 and 10,858.73

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Solution

The fourth proportional to 18,816.51, 25,966.76 and 10,858.73 is: 14,985.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,816.51 : 25,966.76 = 10,858.73 : x
  2. Step 2: Convert to fraction form
    18,816.51/25,966.76 = 10,858.73/x
  3. Step 3: Cross multiply
    18,816.51x = 25,966.76 × 10,858.73
  4. Step 4: Simplify right side
    18,816.51x = 281,966,046.44
  5. Step 5: Solve for x
    x = 281,966,046.44/18,816.51
  6. Step 6: Final answer
    x = 14,985.03

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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.