Home / 12,674.48-19,011.18-3,909.14

Finding the Fourth Proportional to 12,674.48, 19,011.18 and 3,909.14

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Solution

The fourth proportional to 12,674.48, 19,011.18 and 3,909.14 is: 5,863.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,674.48 : 19,011.18 = 3,909.14 : x
  2. Step 2: Convert to fraction form
    12,674.48/19,011.18 = 3,909.14/x
  3. Step 3: Cross multiply
    12,674.48x = 19,011.18 × 3,909.14
  4. Step 4: Simplify right side
    12,674.48x = 74,317,364.19
  5. Step 5: Solve for x
    x = 74,317,364.19/12,674.48
  6. Step 6: Final answer
    x = 5,863.54

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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.