Home / 16,381.20-24,539.40-9,787.80

Finding the Fourth Proportional to 16,381.20, 24,539.40 and 9,787.80

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Solution

The fourth proportional to 16,381.20, 24,539.40 and 9,787.80 is: 14,662.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,381.20 : 24,539.40 = 9,787.80 : x
  2. Step 2: Convert to fraction form
    16,381.20/24,539.40 = 9,787.80/x
  3. Step 3: Cross multiply
    16,381.20x = 24,539.40 × 9,787.80
  4. Step 4: Simplify right side
    16,381.20x = 240,186,739.32
  5. Step 5: Solve for x
    x = 240,186,739.32/16,381.20
  6. Step 6: Final answer
    x = 14,662.34

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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.