Home / 12,279.24-18,419.10-3,045

Finding the Fourth Proportional to 12,279.24, 18,419.10 and 3,045

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Solution

The fourth proportional to 12,279.24, 18,419.10 and 3,045 is: 4,567.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,279.24 : 18,419.10 = 3,045 : x
  2. Step 2: Convert to fraction form
    12,279.24/18,419.10 = 3,045/x
  3. Step 3: Cross multiply
    12,279.24x = 18,419.10 × 3,045
  4. Step 4: Simplify right side
    12,279.24x = 56,086,159.50
  5. Step 5: Solve for x
    x = 56,086,159.50/12,279.24
  6. Step 6: Final answer
    x = 4,567.56

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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.