Home / 17,965.76-26,931.36-9,639.68

Finding the Fourth Proportional to 17,965.76, 26,931.36 and 9,639.68

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Solution

The fourth proportional to 17,965.76, 26,931.36 and 9,639.68 is: 14,450.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,965.76 : 26,931.36 = 9,639.68 : x
  2. Step 2: Convert to fraction form
    17,965.76/26,931.36 = 9,639.68/x
  3. Step 3: Cross multiply
    17,965.76x = 26,931.36 × 9,639.68
  4. Step 4: Simplify right side
    17,965.76x = 259,609,692.36
  5. Step 5: Solve for x
    x = 259,609,692.36/17,965.76
  6. Step 6: Final answer
    x = 14,450.25

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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.