Home / 18,663.78-25,756.32-10,166.07

Finding the Fourth Proportional to 18,663.78, 25,756.32 and 10,166.07

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Solution

The fourth proportional to 18,663.78, 25,756.32 and 10,166.07 is: 14,029.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,663.78 : 25,756.32 = 10,166.07 : x
  2. Step 2: Convert to fraction form
    18,663.78/25,756.32 = 10,166.07/x
  3. Step 3: Cross multiply
    18,663.78x = 25,756.32 × 10,166.07
  4. Step 4: Simplify right side
    18,663.78x = 261,840,552.06
  5. Step 5: Solve for x
    x = 261,840,552.06/18,663.78
  6. Step 6: Final answer
    x = 14,029.34

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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.