Home / 12,929.64-19,395.57-3,569.65

Finding the Fourth Proportional to 12,929.64, 19,395.57 and 3,569.65

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Solution

The fourth proportional to 12,929.64, 19,395.57 and 3,569.65 is: 5,354.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,929.64 : 19,395.57 = 3,569.65 : x
  2. Step 2: Convert to fraction form
    12,929.64/19,395.57 = 3,569.65/x
  3. Step 3: Cross multiply
    12,929.64x = 19,395.57 × 3,569.65
  4. Step 4: Simplify right side
    12,929.64x = 69,235,396.45
  5. Step 5: Solve for x
    x = 69,235,396.45/12,929.64
  6. Step 6: Final answer
    x = 5,354.78

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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.