Home / 18,684.84-25,786.98-10,729.32

Finding the Fourth Proportional to 18,684.84, 25,786.98 and 10,729.32

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Solution

The fourth proportional to 18,684.84, 25,786.98 and 10,729.32 is: 14,807.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,684.84 : 25,786.98 = 10,729.32 : x
  2. Step 2: Convert to fraction form
    18,684.84/25,786.98 = 10,729.32/x
  3. Step 3: Cross multiply
    18,684.84x = 25,786.98 × 10,729.32
  4. Step 4: Simplify right side
    18,684.84x = 276,676,760.25
  5. Step 5: Solve for x
    x = 276,676,760.25/18,684.84
  6. Step 6: Final answer
    x = 14,807.55

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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.