Home / 16,439.20-24,658.80-9,786.40

Finding the Fourth Proportional to 16,439.20, 24,658.80 and 9,786.40

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Solution

The fourth proportional to 16,439.20, 24,658.80 and 9,786.40 is: 14,679.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,439.20 : 24,658.80 = 9,786.40 : x
  2. Step 2: Convert to fraction form
    16,439.20/24,658.80 = 9,786.40/x
  3. Step 3: Cross multiply
    16,439.20x = 24,658.80 × 9,786.40
  4. Step 4: Simplify right side
    16,439.20x = 241,320,880.32
  5. Step 5: Solve for x
    x = 241,320,880.32/16,439.20
  6. Step 6: Final answer
    x = 14,679.60

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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.