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Finding the Fourth Proportional to 13,730.98, 18,941.97 and 9,248.98

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Solution

The fourth proportional to 13,730.98, 18,941.97 and 9,248.98 is: 12,759.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,730.98 : 18,941.97 = 9,248.98 : x
  2. Step 2: Convert to fraction form
    13,730.98/18,941.97 = 9,248.98/x
  3. Step 3: Cross multiply
    13,730.98x = 18,941.97 × 9,248.98
  4. Step 4: Simplify right side
    13,730.98x = 175,193,901.69
  5. Step 5: Solve for x
    x = 175,193,901.69/13,730.98
  6. Step 6: Final answer
    x = 12,759.02

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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.