Home / 12,291.46-18,437.20-5,266.91

Finding the Fourth Proportional to 12,291.46, 18,437.20 and 5,266.91

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Solution

The fourth proportional to 12,291.46, 18,437.20 and 5,266.91 is: 7,900.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,291.46 : 18,437.20 = 5,266.91 : x
  2. Step 2: Convert to fraction form
    12,291.46/18,437.20 = 5,266.91/x
  3. Step 3: Cross multiply
    12,291.46x = 18,437.20 × 5,266.91
  4. Step 4: Simplify right side
    12,291.46x = 97,107,105.98
  5. Step 5: Solve for x
    x = 97,107,105.98/12,291.46
  6. Step 6: Final answer
    x = 7,900.37

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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.