Home / 11,106.53-15,316.40-7,272.44

Finding the Fourth Proportional to 11,106.53, 15,316.40 and 7,272.44

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Solution

The fourth proportional to 11,106.53, 15,316.40 and 7,272.44 is: 10,029.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,106.53 : 15,316.40 = 7,272.44 : x
  2. Step 2: Convert to fraction form
    11,106.53/15,316.40 = 7,272.44/x
  3. Step 3: Cross multiply
    11,106.53x = 15,316.40 × 7,272.44
  4. Step 4: Simplify right side
    11,106.53x = 111,387,656.49
  5. Step 5: Solve for x
    x = 111,387,656.49/11,106.53
  6. Step 6: Final answer
    x = 10,029.03

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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.