Home / 12,859.04-19,286.60-3,499.62

Finding the Fourth Proportional to 12,859.04, 19,286.60 and 3,499.62

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Solution

The fourth proportional to 12,859.04, 19,286.60 and 3,499.62 is: 5,248.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,859.04 : 19,286.60 = 3,499.62 : x
  2. Step 2: Convert to fraction form
    12,859.04/19,286.60 = 3,499.62/x
  3. Step 3: Cross multiply
    12,859.04x = 19,286.60 × 3,499.62
  4. Step 4: Simplify right side
    12,859.04x = 67,495,753.59
  5. Step 5: Solve for x
    x = 67,495,753.59/12,859.04
  6. Step 6: Final answer
    x = 5,248.90

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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.