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Finding the Fourth Proportional to 12,803.29, 19,191.74 and 4,903.65

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Solution

The fourth proportional to 12,803.29, 19,191.74 and 4,903.65 is: 7,350.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,803.29 : 19,191.74 = 4,903.65 : x
  2. Step 2: Convert to fraction form
    12,803.29/19,191.74 = 4,903.65/x
  3. Step 3: Cross multiply
    12,803.29x = 19,191.74 × 4,903.65
  4. Step 4: Simplify right side
    12,803.29x = 94,109,575.85
  5. Step 5: Solve for x
    x = 94,109,575.85/12,803.29
  6. Step 6: Final answer
    x = 7,350.42

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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.