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Finding the Fourth Proportional to 18,710.52, 28,041.48 and 7,604.29

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Solution

The fourth proportional to 18,710.52, 28,041.48 and 7,604.29 is: 11,396.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,710.52 : 28,041.48 = 7,604.29 : x
  2. Step 2: Convert to fraction form
    18,710.52/28,041.48 = 7,604.29/x
  3. Step 3: Cross multiply
    18,710.52x = 28,041.48 × 7,604.29
  4. Step 4: Simplify right side
    18,710.52x = 213,235,405.74
  5. Step 5: Solve for x
    x = 213,235,405.74/18,710.52
  6. Step 6: Final answer
    x = 11,396.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.