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Finding the Fourth Proportional to 8,423.93, 12,637.16 and 2,722.99

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Solution

The fourth proportional to 8,423.93, 12,637.16 and 2,722.99 is: 4,084.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,423.93 : 12,637.16 = 2,722.99 : x
  2. Step 2: Convert to fraction form
    8,423.93/12,637.16 = 2,722.99/x
  3. Step 3: Cross multiply
    8,423.93x = 12,637.16 × 2,722.99
  4. Step 4: Simplify right side
    8,423.93x = 34,410,860.31
  5. Step 5: Solve for x
    x = 34,410,860.31/8,423.93
  6. Step 6: Final answer
    x = 4,084.89

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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.