Home / 18,419.81-27,635.10-5,939.58

Finding the Fourth Proportional to 18,419.81, 27,635.10 and 5,939.58

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Solution

The fourth proportional to 18,419.81, 27,635.10 and 5,939.58 is: 8,911.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,419.81 : 27,635.10 = 5,939.58 : x
  2. Step 2: Convert to fraction form
    18,419.81/27,635.10 = 5,939.58/x
  3. Step 3: Cross multiply
    18,419.81x = 27,635.10 × 5,939.58
  4. Step 4: Simplify right side
    18,419.81x = 164,140,818.17
  5. Step 5: Solve for x
    x = 164,140,818.17/18,419.81
  6. Step 6: Final answer
    x = 8,911.10

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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.