Home / 11,439.94-17,159.90-7,515.99

Finding the Fourth Proportional to 11,439.94, 17,159.90 and 7,515.99

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Solution

The fourth proportional to 11,439.94, 17,159.90 and 7,515.99 is: 11,273.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,439.94 : 17,159.90 = 7,515.99 : x
  2. Step 2: Convert to fraction form
    11,439.94/17,159.90 = 7,515.99/x
  3. Step 3: Cross multiply
    11,439.94x = 17,159.90 × 7,515.99
  4. Step 4: Simplify right side
    11,439.94x = 128,973,636.80
  5. Step 5: Solve for x
    x = 128,973,636.80/11,439.94
  6. Step 6: Final answer
    x = 11,273.98

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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.