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Finding the Fourth Proportional to 15,074.52, 20,802.96 and 8,360.28

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Solution

The fourth proportional to 15,074.52, 20,802.96 and 8,360.28 is: 11,537.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,074.52 : 20,802.96 = 8,360.28 : x
  2. Step 2: Convert to fraction form
    15,074.52/20,802.96 = 8,360.28/x
  3. Step 3: Cross multiply
    15,074.52x = 20,802.96 × 8,360.28
  4. Step 4: Simplify right side
    15,074.52x = 173,918,570.43
  5. Step 5: Solve for x
    x = 173,918,570.43/15,074.52
  6. Step 6: Final answer
    x = 11,537.25

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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.