Home / 12,528.36-18,782.82-5,134.68

Finding the Fourth Proportional to 12,528.36, 18,782.82 and 5,134.68

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Solution

The fourth proportional to 12,528.36, 18,782.82 and 5,134.68 is: 7,698.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528.36 : 18,782.82 = 5,134.68 : x
  2. Step 2: Convert to fraction form
    12,528.36/18,782.82 = 5,134.68/x
  3. Step 3: Cross multiply
    12,528.36x = 18,782.82 × 5,134.68
  4. Step 4: Simplify right side
    12,528.36x = 96,443,770.20
  5. Step 5: Solve for x
    x = 96,443,770.20/12,528.36
  6. Step 6: Final answer
    x = 7,698.04

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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.