Home / 18,663.12-25,755.66-10,707.84

Finding the Fourth Proportional to 18,663.12, 25,755.66 and 10,707.84

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Solution

The fourth proportional to 18,663.12, 25,755.66 and 10,707.84 is: 14,777.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,663.12 : 25,755.66 = 10,707.84 : x
  2. Step 2: Convert to fraction form
    18,663.12/25,755.66 = 10,707.84/x
  3. Step 3: Cross multiply
    18,663.12x = 25,755.66 × 10,707.84
  4. Step 4: Simplify right side
    18,663.12x = 275,787,486.37
  5. Step 5: Solve for x
    x = 275,787,486.37/18,663.12
  6. Step 6: Final answer
    x = 14,777.14

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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.