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Finding the Fourth Proportional to 12,473.68, 18,710.16 and 4,265.68

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Solution

The fourth proportional to 12,473.68, 18,710.16 and 4,265.68 is: 6,398.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,473.68 : 18,710.16 = 4,265.68 : x
  2. Step 2: Convert to fraction form
    12,473.68/18,710.16 = 4,265.68/x
  3. Step 3: Cross multiply
    12,473.68x = 18,710.16 × 4,265.68
  4. Step 4: Simplify right side
    12,473.68x = 79,811,555.31
  5. Step 5: Solve for x
    x = 79,811,555.31/12,473.68
  6. Step 6: Final answer
    x = 6,398.40

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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.