Home / 11,420.55-17,106.51-5,488.74

Finding the Fourth Proportional to 11,420.55, 17,106.51 and 5,488.74

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Solution

The fourth proportional to 11,420.55, 17,106.51 and 5,488.74 is: 8,221.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,420.55 : 17,106.51 = 5,488.74 : x
  2. Step 2: Convert to fraction form
    11,420.55/17,106.51 = 5,488.74/x
  3. Step 3: Cross multiply
    11,420.55x = 17,106.51 × 5,488.74
  4. Step 4: Simplify right side
    11,420.55x = 93,893,185.70
  5. Step 5: Solve for x
    x = 93,893,185.70/11,420.55
  6. Step 6: Final answer
    x = 8,221.42

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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.