Home / 17,986.09-24,821.11-9,920.67

Finding the Fourth Proportional to 17,986.09, 24,821.11 and 9,920.67

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Solution

The fourth proportional to 17,986.09, 24,821.11 and 9,920.67 is: 13,690.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,986.09 : 24,821.11 = 9,920.67 : x
  2. Step 2: Convert to fraction form
    17,986.09/24,821.11 = 9,920.67/x
  3. Step 3: Cross multiply
    17,986.09x = 24,821.11 × 9,920.67
  4. Step 4: Simplify right side
    17,986.09x = 246,241,954.49
  5. Step 5: Solve for x
    x = 246,241,954.49/17,986.09
  6. Step 6: Final answer
    x = 13,690.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.