Home / 12,591.29-18,886.55-3,230.93

Finding the Fourth Proportional to 12,591.29, 18,886.55 and 3,230.93

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Solution

The fourth proportional to 12,591.29, 18,886.55 and 3,230.93 is: 4,846.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,591.29 : 18,886.55 = 3,230.93 : x
  2. Step 2: Convert to fraction form
    12,591.29/18,886.55 = 3,230.93/x
  3. Step 3: Cross multiply
    12,591.29x = 18,886.55 × 3,230.93
  4. Step 4: Simplify right side
    12,591.29x = 61,021,120.99
  5. Step 5: Solve for x
    x = 61,021,120.99/12,591.29
  6. Step 6: Final answer
    x = 4,846.30

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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.