Home / 18,866.64-26,028.36-11,401.68

Finding the Fourth Proportional to 18,866.64, 26,028.36 and 11,401.68

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Solution

The fourth proportional to 18,866.64, 26,028.36 and 11,401.68 is: 15,729.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,866.64 : 26,028.36 = 11,401.68 : x
  2. Step 2: Convert to fraction form
    18,866.64/26,028.36 = 11,401.68/x
  3. Step 3: Cross multiply
    18,866.64x = 26,028.36 × 11,401.68
  4. Step 4: Simplify right side
    18,866.64x = 296,767,031.64
  5. Step 5: Solve for x
    x = 296,767,031.64/18,866.64
  6. Step 6: Final answer
    x = 15,729.72

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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.