Home / 12,744.60-19,118.96-4,429.55

Finding the Fourth Proportional to 12,744.60, 19,118.96 and 4,429.55

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Solution

The fourth proportional to 12,744.60, 19,118.96 and 4,429.55 is: 6,645.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,744.60 : 19,118.96 = 4,429.55 : x
  2. Step 2: Convert to fraction form
    12,744.60/19,118.96 = 4,429.55/x
  3. Step 3: Cross multiply
    12,744.60x = 19,118.96 × 4,429.55
  4. Step 4: Simplify right side
    12,744.60x = 84,688,271.53
  5. Step 5: Solve for x
    x = 84,688,271.53/12,744.60
  6. Step 6: Final answer
    x = 6,645.03

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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.