Home / 12,448.48-18,672.78-4,655.56

Finding the Fourth Proportional to 12,448.48, 18,672.78 and 4,655.56

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Solution

The fourth proportional to 12,448.48, 18,672.78 and 4,655.56 is: 6,983.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,448.48 : 18,672.78 = 4,655.56 : x
  2. Step 2: Convert to fraction form
    12,448.48/18,672.78 = 4,655.56/x
  3. Step 3: Cross multiply
    12,448.48x = 18,672.78 × 4,655.56
  4. Step 4: Simplify right side
    12,448.48x = 86,932,247.66
  5. Step 5: Solve for x
    x = 86,932,247.66/12,448.48
  6. Step 6: Final answer
    x = 6,983.36

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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.