Home / 13,080.72-19,622.70-4,318.68

Finding the Fourth Proportional to 13,080.72, 19,622.70 and 4,318.68

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Solution

The fourth proportional to 13,080.72, 19,622.70 and 4,318.68 is: 6,478.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,080.72 : 19,622.70 = 4,318.68 : x
  2. Step 2: Convert to fraction form
    13,080.72/19,622.70 = 4,318.68/x
  3. Step 3: Cross multiply
    13,080.72x = 19,622.70 × 4,318.68
  4. Step 4: Simplify right side
    13,080.72x = 84,744,162.04
  5. Step 5: Solve for x
    x = 84,744,162.04/13,080.72
  6. Step 6: Final answer
    x = 6,478.55

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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.