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Finding the Fourth Proportional to 12,539.70, 18,803.07 and 6,292.98

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Solution

The fourth proportional to 12,539.70, 18,803.07 and 6,292.98 is: 9,436.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,539.70 : 18,803.07 = 6,292.98 : x
  2. Step 2: Convert to fraction form
    12,539.70/18,803.07 = 6,292.98/x
  3. Step 3: Cross multiply
    12,539.70x = 18,803.07 × 6,292.98
  4. Step 4: Simplify right side
    12,539.70x = 118,327,343.45
  5. Step 5: Solve for x
    x = 118,327,343.45/12,539.70
  6. Step 6: Final answer
    x = 9,436.22

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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.