Home / 15,343.16-21,175.61-11,375.60

Finding the Fourth Proportional to 15,343.16, 21,175.61 and 11,375.60

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Solution

The fourth proportional to 15,343.16, 21,175.61 and 11,375.60 is: 15,699.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,343.16 : 21,175.61 = 11,375.60 : x
  2. Step 2: Convert to fraction form
    15,343.16/21,175.61 = 11,375.60/x
  3. Step 3: Cross multiply
    15,343.16x = 21,175.61 × 11,375.60
  4. Step 4: Simplify right side
    15,343.16x = 240,885,106.36
  5. Step 5: Solve for x
    x = 240,885,106.36/15,343.16
  6. Step 6: Final answer
    x = 15,699.84

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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.