Home / 11,315.70-16,973.82-4,299.08

Finding the Fourth Proportional to 11,315.70, 16,973.82 and 4,299.08

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Solution

The fourth proportional to 11,315.70, 16,973.82 and 4,299.08 is: 6,448.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,315.70 : 16,973.82 = 4,299.08 : x
  2. Step 2: Convert to fraction form
    11,315.70/16,973.82 = 4,299.08/x
  3. Step 3: Cross multiply
    11,315.70x = 16,973.82 × 4,299.08
  4. Step 4: Simplify right side
    11,315.70x = 72,971,725.22
  5. Step 5: Solve for x
    x = 72,971,725.22/11,315.70
  6. Step 6: Final answer
    x = 6,448.72

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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.