Home / 12,627.78-18,953.39-6,392.22

Finding the Fourth Proportional to 12,627.78, 18,953.39 and 6,392.22

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Solution

The fourth proportional to 12,627.78, 18,953.39 and 6,392.22 is: 9,594.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,627.78 : 18,953.39 = 6,392.22 : x
  2. Step 2: Convert to fraction form
    12,627.78/18,953.39 = 6,392.22/x
  3. Step 3: Cross multiply
    12,627.78x = 18,953.39 × 6,392.22
  4. Step 4: Simplify right side
    12,627.78x = 121,154,238.63
  5. Step 5: Solve for x
    x = 121,154,238.63/12,627.78
  6. Step 6: Final answer
    x = 9,594.26

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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.