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Finding the Fourth Proportional to 12,506.40, 18,748.80 and 6,350.40

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Solution

The fourth proportional to 12,506.40, 18,748.80 and 6,350.40 is: 9,520.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,506.40 : 18,748.80 = 6,350.40 : x
  2. Step 2: Convert to fraction form
    12,506.40/18,748.80 = 6,350.40/x
  3. Step 3: Cross multiply
    12,506.40x = 18,748.80 × 6,350.40
  4. Step 4: Simplify right side
    12,506.40x = 119,062,379.52
  5. Step 5: Solve for x
    x = 119,062,379.52/12,506.40
  6. Step 6: Final answer
    x = 9,520.12

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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.