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Finding the Fourth Proportional to 15,080.16, 20,819.04 and 10,051.20

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Solution

The fourth proportional to 15,080.16, 20,819.04 and 10,051.20 is: 13,876.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,080.16 : 20,819.04 = 10,051.20 : x
  2. Step 2: Convert to fraction form
    15,080.16/20,819.04 = 10,051.20/x
  3. Step 3: Cross multiply
    15,080.16x = 20,819.04 × 10,051.20
  4. Step 4: Simplify right side
    15,080.16x = 209,256,334.85
  5. Step 5: Solve for x
    x = 209,256,334.85/15,080.16
  6. Step 6: Final answer
    x = 13,876.27

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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.