Home / 12,472.67-18,709.83-4,152.35

Finding the Fourth Proportional to 12,472.67, 18,709.83 and 4,152.35

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Solution

The fourth proportional to 12,472.67, 18,709.83 and 4,152.35 is: 6,228.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,472.67 : 18,709.83 = 4,152.35 : x
  2. Step 2: Convert to fraction form
    12,472.67/18,709.83 = 4,152.35/x
  3. Step 3: Cross multiply
    12,472.67x = 18,709.83 × 4,152.35
  4. Step 4: Simplify right side
    12,472.67x = 77,689,762.60
  5. Step 5: Solve for x
    x = 77,689,762.60/12,472.67
  6. Step 6: Final answer
    x = 6,228.80

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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.