Home / 12,420.96-17,141.76-6,832.32

Finding the Fourth Proportional to 12,420.96, 17,141.76 and 6,832.32

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Solution

The fourth proportional to 12,420.96, 17,141.76 and 6,832.32 is: 9,429.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,420.96 : 17,141.76 = 6,832.32 : x
  2. Step 2: Convert to fraction form
    12,420.96/17,141.76 = 6,832.32/x
  3. Step 3: Cross multiply
    12,420.96x = 17,141.76 × 6,832.32
  4. Step 4: Simplify right side
    12,420.96x = 117,117,989.68
  5. Step 5: Solve for x
    x = 117,117,989.68/12,420.96
  6. Step 6: Final answer
    x = 9,429.06

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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.