Home / 12,909.92-19,366.23-5,515.16

Finding the Fourth Proportional to 12,909.92, 19,366.23 and 5,515.16

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Solution

The fourth proportional to 12,909.92, 19,366.23 and 5,515.16 is: 8,273.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,909.92 : 19,366.23 = 5,515.16 : x
  2. Step 2: Convert to fraction form
    12,909.92/19,366.23 = 5,515.16/x
  3. Step 3: Cross multiply
    12,909.92x = 19,366.23 × 5,515.16
  4. Step 4: Simplify right side
    12,909.92x = 106,807,857.05
  5. Step 5: Solve for x
    x = 106,807,857.05/12,909.92
  6. Step 6: Final answer
    x = 8,273.32

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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.