Home / 11,290.05-15,578.93-6,511.58

Finding the Fourth Proportional to 11,290.05, 15,578.93 and 6,511.58

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Solution

The fourth proportional to 11,290.05, 15,578.93 and 6,511.58 is: 8,985.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,290.05 : 15,578.93 = 6,511.58 : x
  2. Step 2: Convert to fraction form
    11,290.05/15,578.93 = 6,511.58/x
  3. Step 3: Cross multiply
    11,290.05x = 15,578.93 × 6,511.58
  4. Step 4: Simplify right side
    11,290.05x = 101,443,338.56
  5. Step 5: Solve for x
    x = 101,443,338.56/11,290.05
  6. Step 6: Final answer
    x = 8,985.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.