Home / 12,217.20-16,859.73-6,911.89

Finding the Fourth Proportional to 12,217.20, 16,859.73 and 6,911.89

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Solution

The fourth proportional to 12,217.20, 16,859.73 and 6,911.89 is: 9,538.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217.20 : 16,859.73 = 6,911.89 : x
  2. Step 2: Convert to fraction form
    12,217.20/16,859.73 = 6,911.89/x
  3. Step 3: Cross multiply
    12,217.20x = 16,859.73 × 6,911.89
  4. Step 4: Simplify right side
    12,217.20x = 116,532,599.19
  5. Step 5: Solve for x
    x = 116,532,599.19/12,217.20
  6. Step 6: Final answer
    x = 9,538.40

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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.