Home / 14,989.44-20,685.31-8,275.06

Finding the Fourth Proportional to 14,989.44, 20,685.31 and 8,275.06

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Solution

The fourth proportional to 14,989.44, 20,685.31 and 8,275.06 is: 11,419.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,989.44 : 20,685.31 = 8,275.06 : x
  2. Step 2: Convert to fraction form
    14,989.44/20,685.31 = 8,275.06/x
  3. Step 3: Cross multiply
    14,989.44x = 20,685.31 × 8,275.06
  4. Step 4: Simplify right side
    14,989.44x = 171,172,181.37
  5. Step 5: Solve for x
    x = 171,172,181.37/14,989.44
  6. Step 6: Final answer
    x = 11,419.52

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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.