Home / 13,456.94-20,185.40-6,435.29

Finding the Fourth Proportional to 13,456.94, 20,185.40 and 6,435.29

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Solution

The fourth proportional to 13,456.94, 20,185.40 and 6,435.29 is: 9,652.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,456.94 : 20,185.40 = 6,435.29 : x
  2. Step 2: Convert to fraction form
    13,456.94/20,185.40 = 6,435.29/x
  3. Step 3: Cross multiply
    13,456.94x = 20,185.40 × 6,435.29
  4. Step 4: Simplify right side
    13,456.94x = 129,898,969.32
  5. Step 5: Solve for x
    x = 129,898,969.32/13,456.94
  6. Step 6: Final answer
    x = 9,652.94

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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.