Home / 12,930.99-19,392.95-3,568.77

Finding the Fourth Proportional to 12,930.99, 19,392.95 and 3,568.77

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Solution

The fourth proportional to 12,930.99, 19,392.95 and 3,568.77 is: 5,352.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,930.99 : 19,392.95 = 3,568.77 : x
  2. Step 2: Convert to fraction form
    12,930.99/19,392.95 = 3,568.77/x
  3. Step 3: Cross multiply
    12,930.99x = 19,392.95 × 3,568.77
  4. Step 4: Simplify right side
    12,930.99x = 69,208,960.33
  5. Step 5: Solve for x
    x = 69,208,960.33/12,930.99
  6. Step 6: Final answer
    x = 5,352.18

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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.