Home / 12,250.49-18,320.36-9,438.98

Finding the Fourth Proportional to 12,250.49, 18,320.36 and 9,438.98

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Solution

The fourth proportional to 12,250.49, 18,320.36 and 9,438.98 is: 14,115.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,250.49 : 18,320.36 = 9,438.98 : x
  2. Step 2: Convert to fraction form
    12,250.49/18,320.36 = 9,438.98/x
  3. Step 3: Cross multiply
    12,250.49x = 18,320.36 × 9,438.98
  4. Step 4: Simplify right side
    12,250.49x = 172,925,372.84
  5. Step 5: Solve for x
    x = 172,925,372.84/12,250.49
  6. Step 6: Final answer
    x = 14,115.80

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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.