Home / 12,648.23-18,972.60-4,337.80

Finding the Fourth Proportional to 12,648.23, 18,972.60 and 4,337.80

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Solution

The fourth proportional to 12,648.23, 18,972.60 and 4,337.80 is: 6,506.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,648.23 : 18,972.60 = 4,337.80 : x
  2. Step 2: Convert to fraction form
    12,648.23/18,972.60 = 4,337.80/x
  3. Step 3: Cross multiply
    12,648.23x = 18,972.60 × 4,337.80
  4. Step 4: Simplify right side
    12,648.23x = 82,299,331.41
  5. Step 5: Solve for x
    x = 82,299,331.41/12,648.23
  6. Step 6: Final answer
    x = 6,506.79

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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.