Home / 15,310.26-21,126.81-9,343.80

Finding the Fourth Proportional to 15,310.26, 21,126.81 and 9,343.80

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Solution

The fourth proportional to 15,310.26, 21,126.81 and 9,343.80 is: 12,893.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,310.26 : 21,126.81 = 9,343.80 : x
  2. Step 2: Convert to fraction form
    15,310.26/21,126.81 = 9,343.80/x
  3. Step 3: Cross multiply
    15,310.26x = 21,126.81 × 9,343.80
  4. Step 4: Simplify right side
    15,310.26x = 197,404,687.28
  5. Step 5: Solve for x
    x = 197,404,687.28/15,310.26
  6. Step 6: Final answer
    x = 12,893.62

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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.