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Finding the Fourth Proportional to 18,257.58, 27,386.40 and 4,406.58

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Solution

The fourth proportional to 18,257.58, 27,386.40 and 4,406.58 is: 6,609.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,257.58 : 27,386.40 = 4,406.58 : x
  2. Step 2: Convert to fraction form
    18,257.58/27,386.40 = 4,406.58/x
  3. Step 3: Cross multiply
    18,257.58x = 27,386.40 × 4,406.58
  4. Step 4: Simplify right side
    18,257.58x = 120,680,362.51
  5. Step 5: Solve for x
    x = 120,680,362.51/18,257.58
  6. Step 6: Final answer
    x = 6,609.88

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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.