Home / 12,363.92-18,555.84-6,442.62

Finding the Fourth Proportional to 12,363.92, 18,555.84 and 6,442.62

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Solution

The fourth proportional to 12,363.92, 18,555.84 and 6,442.62 is: 9,669.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,363.92 : 18,555.84 = 6,442.62 : x
  2. Step 2: Convert to fraction form
    12,363.92/18,555.84 = 6,442.62/x
  3. Step 3: Cross multiply
    12,363.92x = 18,555.84 × 6,442.62
  4. Step 4: Simplify right side
    12,363.92x = 119,548,133.12
  5. Step 5: Solve for x
    x = 119,548,133.12/12,363.92
  6. Step 6: Final answer
    x = 9,669.11

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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.