Home / 18,721.84-25,837.50-10,766.56

Finding the Fourth Proportional to 18,721.84, 25,837.50 and 10,766.56

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Solution

The fourth proportional to 18,721.84, 25,837.50 and 10,766.56 is: 14,858.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721.84 : 25,837.50 = 10,766.56 : x
  2. Step 2: Convert to fraction form
    18,721.84/25,837.50 = 10,766.56/x
  3. Step 3: Cross multiply
    18,721.84x = 25,837.50 × 10,766.56
  4. Step 4: Simplify right side
    18,721.84x = 278,180,994
  5. Step 5: Solve for x
    x = 278,180,994/18,721.84
  6. Step 6: Final answer
    x = 14,858.64

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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.