Home / 18,642.53-25,727.30-10,686.25

Finding the Fourth Proportional to 18,642.53, 25,727.30 and 10,686.25

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Solution

The fourth proportional to 18,642.53, 25,727.30 and 10,686.25 is: 14,747.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,642.53 : 25,727.30 = 10,686.25 : x
  2. Step 2: Convert to fraction form
    18,642.53/25,727.30 = 10,686.25/x
  3. Step 3: Cross multiply
    18,642.53x = 25,727.30 × 10,686.25
  4. Step 4: Simplify right side
    18,642.53x = 274,928,359.63
  5. Step 5: Solve for x
    x = 274,928,359.63/18,642.53
  6. Step 6: Final answer
    x = 14,747.37

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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.