Home / 12,246.44-18,402.78-6,407.36

Finding the Fourth Proportional to 12,246.44, 18,402.78 and 6,407.36

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Solution

The fourth proportional to 12,246.44, 18,402.78 and 6,407.36 is: 9,628.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,246.44 : 18,402.78 = 6,407.36 : x
  2. Step 2: Convert to fraction form
    12,246.44/18,402.78 = 6,407.36/x
  3. Step 3: Cross multiply
    12,246.44x = 18,402.78 × 6,407.36
  4. Step 4: Simplify right side
    12,246.44x = 117,913,236.46
  5. Step 5: Solve for x
    x = 117,913,236.46/12,246.44
  6. Step 6: Final answer
    x = 9,628.37

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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.