Home / 12,207.02-16,845.81-7,171.45

Finding the Fourth Proportional to 12,207.02, 16,845.81 and 7,171.45

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Solution

The fourth proportional to 12,207.02, 16,845.81 and 7,171.45 is: 9,896.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,207.02 : 16,845.81 = 7,171.45 : x
  2. Step 2: Convert to fraction form
    12,207.02/16,845.81 = 7,171.45/x
  3. Step 3: Cross multiply
    12,207.02x = 16,845.81 × 7,171.45
  4. Step 4: Simplify right side
    12,207.02x = 120,808,799.90
  5. Step 5: Solve for x
    x = 120,808,799.90/12,207.02
  6. Step 6: Final answer
    x = 9,896.67

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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.