Home / 18,674.24-25,770.40-10,290.72

Finding the Fourth Proportional to 18,674.24, 25,770.40 and 10,290.72

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Solution

The fourth proportional to 18,674.24, 25,770.40 and 10,290.72 is: 14,201.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,674.24 : 25,770.40 = 10,290.72 : x
  2. Step 2: Convert to fraction form
    18,674.24/25,770.40 = 10,290.72/x
  3. Step 3: Cross multiply
    18,674.24x = 25,770.40 × 10,290.72
  4. Step 4: Simplify right side
    18,674.24x = 265,195,970.69
  5. Step 5: Solve for x
    x = 265,195,970.69/18,674.24
  6. Step 6: Final answer
    x = 14,201.17

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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.