Home / 18,303.05-27,484.94-11,421.29

Finding the Fourth Proportional to 18,303.05, 27,484.94 and 11,421.29

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Solution

The fourth proportional to 18,303.05, 27,484.94 and 11,421.29 is: 17,150.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,303.05 : 27,484.94 = 11,421.29 : x
  2. Step 2: Convert to fraction form
    18,303.05/27,484.94 = 11,421.29/x
  3. Step 3: Cross multiply
    18,303.05x = 27,484.94 × 11,421.29
  4. Step 4: Simplify right side
    18,303.05x = 313,913,470.37
  5. Step 5: Solve for x
    x = 313,913,470.37/18,303.05
  6. Step 6: Final answer
    x = 17,150.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.