Home / 12,131.67-18,197.46-4,340.46

Finding the Fourth Proportional to 12,131.67, 18,197.46 and 4,340.46

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Solution

The fourth proportional to 12,131.67, 18,197.46 and 4,340.46 is: 6,510.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,131.67 : 18,197.46 = 4,340.46 : x
  2. Step 2: Convert to fraction form
    12,131.67/18,197.46 = 4,340.46/x
  3. Step 3: Cross multiply
    12,131.67x = 18,197.46 × 4,340.46
  4. Step 4: Simplify right side
    12,131.67x = 78,985,347.23
  5. Step 5: Solve for x
    x = 78,985,347.23/12,131.67
  6. Step 6: Final answer
    x = 6,510.67

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Double scale
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Similar ratio
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1.5x scale

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.