Home / 12,636.22-17,437.80-7,334.05

Finding the Fourth Proportional to 12,636.22, 17,437.80 and 7,334.05

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Solution

The fourth proportional to 12,636.22, 17,437.80 and 7,334.05 is: 10,120.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,636.22 : 17,437.80 = 7,334.05 : x
  2. Step 2: Convert to fraction form
    12,636.22/17,437.80 = 7,334.05/x
  3. Step 3: Cross multiply
    12,636.22x = 17,437.80 × 7,334.05
  4. Step 4: Simplify right side
    12,636.22x = 127,889,697.09
  5. Step 5: Solve for x
    x = 127,889,697.09/12,636.22
  6. Step 6: Final answer
    x = 10,120.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.