Home / 13,932.40-19,215.98-9,683.42

Finding the Fourth Proportional to 13,932.40, 19,215.98 and 9,683.42

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Solution

The fourth proportional to 13,932.40, 19,215.98 and 9,683.42 is: 13,355.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,932.40 : 19,215.98 = 9,683.42 : x
  2. Step 2: Convert to fraction form
    13,932.40/19,215.98 = 9,683.42/x
  3. Step 3: Cross multiply
    13,932.40x = 19,215.98 × 9,683.42
  4. Step 4: Simplify right side
    13,932.40x = 186,076,405.05
  5. Step 5: Solve for x
    x = 186,076,405.05/13,932.40
  6. Step 6: Final answer
    x = 13,355.66

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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.