Home / 12,013.30-18,005.55-6,166.90

Finding the Fourth Proportional to 12,013.30, 18,005.55 and 6,166.90

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Solution

The fourth proportional to 12,013.30, 18,005.55 and 6,166.90 is: 9,242.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,013.30 : 18,005.55 = 6,166.90 : x
  2. Step 2: Convert to fraction form
    12,013.30/18,005.55 = 6,166.90/x
  3. Step 3: Cross multiply
    12,013.30x = 18,005.55 × 6,166.90
  4. Step 4: Simplify right side
    12,013.30x = 111,038,426.30
  5. Step 5: Solve for x
    x = 111,038,426.30/12,013.30
  6. Step 6: Final answer
    x = 9,242.96

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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.