Home / 12,011.10-18,008.55-6,162.90

Finding the Fourth Proportional to 12,011.10, 18,008.55 and 6,162.90

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Solution

The fourth proportional to 12,011.10, 18,008.55 and 6,162.90 is: 9,240.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,011.10 : 18,008.55 = 6,162.90 : x
  2. Step 2: Convert to fraction form
    12,011.10/18,008.55 = 6,162.90/x
  3. Step 3: Cross multiply
    12,011.10x = 18,008.55 × 6,162.90
  4. Step 4: Simplify right side
    12,011.10x = 110,984,892.80
  5. Step 5: Solve for x
    x = 110,984,892.80/12,011.10
  6. Step 6: Final answer
    x = 9,240.19

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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.