Home / 12,532.36-18,788.80-5,138.68

Finding the Fourth Proportional to 12,532.36, 18,788.80 and 5,138.68

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Solution

The fourth proportional to 12,532.36, 18,788.80 and 5,138.68 is: 7,704.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,532.36 : 18,788.80 = 5,138.68 : x
  2. Step 2: Convert to fraction form
    12,532.36/18,788.80 = 5,138.68/x
  3. Step 3: Cross multiply
    12,532.36x = 18,788.80 × 5,138.68
  4. Step 4: Simplify right side
    12,532.36x = 96,549,630.78
  5. Step 5: Solve for x
    x = 96,549,630.78/12,532.36
  6. Step 6: Final answer
    x = 7,704.03

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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.