Home / 12,392.72-18,586.88-5,368.80

Finding the Fourth Proportional to 12,392.72, 18,586.88 and 5,368.80

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Solution

The fourth proportional to 12,392.72, 18,586.88 and 5,368.80 is: 8,052.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,392.72 : 18,586.88 = 5,368.80 : x
  2. Step 2: Convert to fraction form
    12,392.72/18,586.88 = 5,368.80/x
  3. Step 3: Cross multiply
    12,392.72x = 18,586.88 × 5,368.80
  4. Step 4: Simplify right side
    12,392.72x = 99,789,241.34
  5. Step 5: Solve for x
    x = 99,789,241.34/12,392.72
  6. Step 6: Final answer
    x = 8,052.25

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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.