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Finding the Fourth Proportional to 15,104.08, 20,844.33 and 8,389.74

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Solution

The fourth proportional to 15,104.08, 20,844.33 and 8,389.74 is: 11,578.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,104.08 : 20,844.33 = 8,389.74 : x
  2. Step 2: Convert to fraction form
    15,104.08/20,844.33 = 8,389.74/x
  3. Step 3: Cross multiply
    15,104.08x = 20,844.33 × 8,389.74
  4. Step 4: Simplify right side
    15,104.08x = 174,878,363.00
  5. Step 5: Solve for x
    x = 174,878,363.00/15,104.08
  6. Step 6: Final answer
    x = 11,578.22

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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.