Home / 12,208.80-16,848.75-7,173.30

Finding the Fourth Proportional to 12,208.80, 16,848.75 and 7,173.30

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Solution

The fourth proportional to 12,208.80, 16,848.75 and 7,173.30 is: 9,899.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,208.80 : 16,848.75 = 7,173.30 : x
  2. Step 2: Convert to fraction form
    12,208.80/16,848.75 = 7,173.30/x
  3. Step 3: Cross multiply
    12,208.80x = 16,848.75 × 7,173.30
  4. Step 4: Simplify right side
    12,208.80x = 120,861,138.38
  5. Step 5: Solve for x
    x = 120,861,138.38/12,208.80
  6. Step 6: Final answer
    x = 9,899.51

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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.