Home / 11,175.58-15,421.71-6,140.44

Finding the Fourth Proportional to 11,175.58, 15,421.71 and 6,140.44

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Solution

The fourth proportional to 11,175.58, 15,421.71 and 6,140.44 is: 8,473.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,175.58 : 15,421.71 = 6,140.44 : x
  2. Step 2: Convert to fraction form
    11,175.58/15,421.71 = 6,140.44/x
  3. Step 3: Cross multiply
    11,175.58x = 15,421.71 × 6,140.44
  4. Step 4: Simplify right side
    11,175.58x = 94,696,084.95
  5. Step 5: Solve for x
    x = 94,696,084.95/11,175.58
  6. Step 6: Final answer
    x = 8,473.48

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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.