Home / 12,356.20-18,535.50-3,590.92

Finding the Fourth Proportional to 12,356.20, 18,535.50 and 3,590.92

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Solution

The fourth proportional to 12,356.20, 18,535.50 and 3,590.92 is: 5,386.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356.20 : 18,535.50 = 3,590.92 : x
  2. Step 2: Convert to fraction form
    12,356.20/18,535.50 = 3,590.92/x
  3. Step 3: Cross multiply
    12,356.20x = 18,535.50 × 3,590.92
  4. Step 4: Simplify right side
    12,356.20x = 66,559,497.66
  5. Step 5: Solve for x
    x = 66,559,497.66/12,356.20
  6. Step 6: Final answer
    x = 5,386.73

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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.