Home / 12,613.52-18,914.81-4,291.30

Finding the Fourth Proportional to 12,613.52, 18,914.81 and 4,291.30

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Solution

The fourth proportional to 12,613.52, 18,914.81 and 4,291.30 is: 6,435.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,613.52 : 18,914.81 = 4,291.30 : x
  2. Step 2: Convert to fraction form
    12,613.52/18,914.81 = 4,291.30/x
  3. Step 3: Cross multiply
    12,613.52x = 18,914.81 × 4,291.30
  4. Step 4: Simplify right side
    12,613.52x = 81,169,102.70
  5. Step 5: Solve for x
    x = 81,169,102.70/12,613.52
  6. Step 6: Final answer
    x = 6,435.09

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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.