Home / 8,624.39-12,936.63-3,430.27

Finding the Fourth Proportional to 8,624.39, 12,936.63 and 3,430.27

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Solution

The fourth proportional to 8,624.39, 12,936.63 and 3,430.27 is: 5,145.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,624.39 : 12,936.63 = 3,430.27 : x
  2. Step 2: Convert to fraction form
    8,624.39/12,936.63 = 3,430.27/x
  3. Step 3: Cross multiply
    8,624.39x = 12,936.63 × 3,430.27
  4. Step 4: Simplify right side
    8,624.39x = 44,376,133.79
  5. Step 5: Solve for x
    x = 44,376,133.79/8,624.39
  6. Step 6: Final answer
    x = 5,145.42

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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.