Home / 12,487.67-18,724.26-5,913.80

Finding the Fourth Proportional to 12,487.67, 18,724.26 and 5,913.80

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Solution

The fourth proportional to 12,487.67, 18,724.26 and 5,913.80 is: 8,867.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,487.67 : 18,724.26 = 5,913.80 : x
  2. Step 2: Convert to fraction form
    12,487.67/18,724.26 = 5,913.80/x
  3. Step 3: Cross multiply
    12,487.67x = 18,724.26 × 5,913.80
  4. Step 4: Simplify right side
    12,487.67x = 110,731,528.79
  5. Step 5: Solve for x
    x = 110,731,528.79/12,487.67
  6. Step 6: Final answer
    x = 8,867.27

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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.