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Finding the Fourth Proportional to 12,803.61, 19,207.05 and 5,011.41

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Solution

The fourth proportional to 12,803.61, 19,207.05 and 5,011.41 is: 7,517.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,803.61 : 19,207.05 = 5,011.41 : x
  2. Step 2: Convert to fraction form
    12,803.61/19,207.05 = 5,011.41/x
  3. Step 3: Cross multiply
    12,803.61x = 19,207.05 × 5,011.41
  4. Step 4: Simplify right side
    12,803.61x = 96,254,402.44
  5. Step 5: Solve for x
    x = 96,254,402.44/12,803.61
  6. Step 6: Final answer
    x = 7,517.75

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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.