Home / 12,684.20-17,503.01-8,587.67

Finding the Fourth Proportional to 12,684.20, 17,503.01 and 8,587.67

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Solution

The fourth proportional to 12,684.20, 17,503.01 and 8,587.67 is: 11,850.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,684.20 : 17,503.01 = 8,587.67 : x
  2. Step 2: Convert to fraction form
    12,684.20/17,503.01 = 8,587.67/x
  3. Step 3: Cross multiply
    12,684.20x = 17,503.01 × 8,587.67
  4. Step 4: Simplify right side
    12,684.20x = 150,310,139.11
  5. Step 5: Solve for x
    x = 150,310,139.11/12,684.20
  6. Step 6: Final answer
    x = 11,850.18

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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.