Home / 16,420.36-24,612.30-12,511.88

Finding the Fourth Proportional to 16,420.36, 24,612.30 and 12,511.88

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Solution

The fourth proportional to 16,420.36, 24,612.30 and 12,511.88 is: 18,753.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,420.36 : 24,612.30 = 12,511.88 : x
  2. Step 2: Convert to fraction form
    16,420.36/24,612.30 = 12,511.88/x
  3. Step 3: Cross multiply
    16,420.36x = 24,612.30 × 12,511.88
  4. Step 4: Simplify right side
    16,420.36x = 307,946,144.12
  5. Step 5: Solve for x
    x = 307,946,144.12/16,420.36
  6. Step 6: Final answer
    x = 18,753.92

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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.