Home / 11,998.02-18,000.54-6,158.70

Finding the Fourth Proportional to 11,998.02, 18,000.54 and 6,158.70

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Solution

The fourth proportional to 11,998.02, 18,000.54 and 6,158.70 is: 9,239.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,998.02 : 18,000.54 = 6,158.70 : x
  2. Step 2: Convert to fraction form
    11,998.02/18,000.54 = 6,158.70/x
  3. Step 3: Cross multiply
    11,998.02x = 18,000.54 × 6,158.70
  4. Step 4: Simplify right side
    11,998.02x = 110,859,925.70
  5. Step 5: Solve for x
    x = 110,859,925.70/11,998.02
  6. Step 6: Final answer
    x = 9,239.85

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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.