Home / 18,663.68-25,756.47-10,166.12

Finding the Fourth Proportional to 18,663.68, 25,756.47 and 10,166.12

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Solution

The fourth proportional to 18,663.68, 25,756.47 and 10,166.12 is: 14,029.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,663.68 : 25,756.47 = 10,166.12 : x
  2. Step 2: Convert to fraction form
    18,663.68/25,756.47 = 10,166.12/x
  3. Step 3: Cross multiply
    18,663.68x = 25,756.47 × 10,166.12
  4. Step 4: Simplify right side
    18,663.68x = 261,843,332.60
  5. Step 5: Solve for x
    x = 261,843,332.60/18,663.68
  6. Step 6: Final answer
    x = 14,029.56

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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.