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Finding the Fourth Proportional to 15,080.26, 20,810.82 and 8,365.87

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Solution

The fourth proportional to 15,080.26, 20,810.82 and 8,365.87 is: 11,544.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,080.26 : 20,810.82 = 8,365.87 : x
  2. Step 2: Convert to fraction form
    15,080.26/20,810.82 = 8,365.87/x
  3. Step 3: Cross multiply
    15,080.26x = 20,810.82 × 8,365.87
  4. Step 4: Simplify right side
    15,080.26x = 174,100,614.71
  5. Step 5: Solve for x
    x = 174,100,614.71/15,080.26
  6. Step 6: Final answer
    x = 11,544.93

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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.