Home / 19,419.66-29,105.04-8,313.21

Finding the Fourth Proportional to 19,419.66, 29,105.04 and 8,313.21

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Solution

The fourth proportional to 19,419.66, 29,105.04 and 8,313.21 is: 12,459.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,419.66 : 29,105.04 = 8,313.21 : x
  2. Step 2: Convert to fraction form
    19,419.66/29,105.04 = 8,313.21/x
  3. Step 3: Cross multiply
    19,419.66x = 29,105.04 × 8,313.21
  4. Step 4: Simplify right side
    19,419.66x = 241,956,309.58
  5. Step 5: Solve for x
    x = 241,956,309.58/19,419.66
  6. Step 6: Final answer
    x = 12,459.35

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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.