Home / 12,590.52-18,887.92-3,826.32

Finding the Fourth Proportional to 12,590.52, 18,887.92 and 3,826.32

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Solution

The fourth proportional to 12,590.52, 18,887.92 and 3,826.32 is: 5,740.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,590.52 : 18,887.92 = 3,826.32 : x
  2. Step 2: Convert to fraction form
    12,590.52/18,887.92 = 3,826.32/x
  3. Step 3: Cross multiply
    12,590.52x = 18,887.92 × 3,826.32
  4. Step 4: Simplify right side
    12,590.52x = 72,271,226.05
  5. Step 5: Solve for x
    x = 72,271,226.05/12,590.52
  6. Step 6: Final answer
    x = 5,740.13

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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.