Home / 12,438.10-17,179.98-9,029.67

Finding the Fourth Proportional to 12,438.10, 17,179.98 and 9,029.67

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Solution

The fourth proportional to 12,438.10, 17,179.98 and 9,029.67 is: 12,472.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,438.10 : 17,179.98 = 9,029.67 : x
  2. Step 2: Convert to fraction form
    12,438.10/17,179.98 = 9,029.67/x
  3. Step 3: Cross multiply
    12,438.10x = 17,179.98 × 9,029.67
  4. Step 4: Simplify right side
    12,438.10x = 155,129,550.01
  5. Step 5: Solve for x
    x = 155,129,550.01/12,438.10
  6. Step 6: Final answer
    x = 12,472.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.