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Finding the Fourth Proportional to 12,269.70, 18,426.15 and 9,503.10

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Solution

The fourth proportional to 12,269.70, 18,426.15 and 9,503.10 is: 14,271.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,269.70 : 18,426.15 = 9,503.10 : x
  2. Step 2: Convert to fraction form
    12,269.70/18,426.15 = 9,503.10/x
  3. Step 3: Cross multiply
    12,269.70x = 18,426.15 × 9,503.10
  4. Step 4: Simplify right side
    12,269.70x = 175,105,546.07
  5. Step 5: Solve for x
    x = 175,105,546.07/12,269.70
  6. Step 6: Final answer
    x = 14,271.38

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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.