Home / 19,366.38-29,037.84-8,690.78

Finding the Fourth Proportional to 19,366.38, 29,037.84 and 8,690.78

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Solution

The fourth proportional to 19,366.38, 29,037.84 and 8,690.78 is: 13,030.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,366.38 : 29,037.84 = 8,690.78 : x
  2. Step 2: Convert to fraction form
    19,366.38/29,037.84 = 8,690.78/x
  3. Step 3: Cross multiply
    19,366.38x = 29,037.84 × 8,690.78
  4. Step 4: Simplify right side
    19,366.38x = 252,361,479.12
  5. Step 5: Solve for x
    x = 252,361,479.12/19,366.38
  6. Step 6: Final answer
    x = 13,030.91

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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.