Home / 12,167.64-18,237.42-4,764.78

Finding the Fourth Proportional to 12,167.64, 18,237.42 and 4,764.78

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Solution

The fourth proportional to 12,167.64, 18,237.42 and 4,764.78 is: 7,141.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,167.64 : 18,237.42 = 4,764.78 : x
  2. Step 2: Convert to fraction form
    12,167.64/18,237.42 = 4,764.78/x
  3. Step 3: Cross multiply
    12,167.64x = 18,237.42 × 4,764.78
  4. Step 4: Simplify right side
    12,167.64x = 86,897,294.07
  5. Step 5: Solve for x
    x = 86,897,294.07/12,167.64
  6. Step 6: Final answer
    x = 7,141.67

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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.