Home / 18,674.40-25,770.48-10,721.04

Finding the Fourth Proportional to 18,674.40, 25,770.48 and 10,721.04

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Solution

The fourth proportional to 18,674.40, 25,770.48 and 10,721.04 is: 14,794.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,674.40 : 25,770.48 = 10,721.04 : x
  2. Step 2: Convert to fraction form
    18,674.40/25,770.48 = 10,721.04/x
  3. Step 3: Cross multiply
    18,674.40x = 25,770.48 × 10,721.04
  4. Step 4: Simplify right side
    18,674.40x = 276,286,346.90
  5. Step 5: Solve for x
    x = 276,286,346.90/18,674.40
  6. Step 6: Final answer
    x = 14,794.92

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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.