Home / 12,462.60-17,190.66-7,423.39

Finding the Fourth Proportional to 12,462.60, 17,190.66 and 7,423.39

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Solution

The fourth proportional to 12,462.60, 17,190.66 and 7,423.39 is: 10,239.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,462.60 : 17,190.66 = 7,423.39 : x
  2. Step 2: Convert to fraction form
    12,462.60/17,190.66 = 7,423.39/x
  3. Step 3: Cross multiply
    12,462.60x = 17,190.66 × 7,423.39
  4. Step 4: Simplify right side
    12,462.60x = 127,612,973.54
  5. Step 5: Solve for x
    x = 127,612,973.54/12,462.60
  6. Step 6: Final answer
    x = 10,239.67

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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.