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Finding the Fourth Proportional to 15,080.16, 20,814.88 and 10,604.96

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Solution

The fourth proportional to 15,080.16, 20,814.88 and 10,604.96 is: 14,637.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,080.16 : 20,814.88 = 10,604.96 : x
  2. Step 2: Convert to fraction form
    15,080.16/20,814.88 = 10,604.96/x
  3. Step 3: Cross multiply
    15,080.16x = 20,814.88 × 10,604.96
  4. Step 4: Simplify right side
    15,080.16x = 220,740,969.80
  5. Step 5: Solve for x
    x = 220,740,969.80/15,080.16
  6. Step 6: Final answer
    x = 14,637.84

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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.