Home / 12,645.03-18,971.31-5,624.08

Finding the Fourth Proportional to 12,645.03, 18,971.31 and 5,624.08

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Solution

The fourth proportional to 12,645.03, 18,971.31 and 5,624.08 is: 8,437.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,645.03 : 18,971.31 = 5,624.08 : x
  2. Step 2: Convert to fraction form
    12,645.03/18,971.31 = 5,624.08/x
  3. Step 3: Cross multiply
    12,645.03x = 18,971.31 × 5,624.08
  4. Step 4: Simplify right side
    12,645.03x = 106,696,117.72
  5. Step 5: Solve for x
    x = 106,696,117.72/12,645.03
  6. Step 6: Final answer
    x = 8,437.79

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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.