Home / 12,013.98-18,021.10-9,433.32

Finding the Fourth Proportional to 12,013.98, 18,021.10 and 9,433.32

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Solution

The fourth proportional to 12,013.98, 18,021.10 and 9,433.32 is: 14,150.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,013.98 : 18,021.10 = 9,433.32 : x
  2. Step 2: Convert to fraction form
    12,013.98/18,021.10 = 9,433.32/x
  3. Step 3: Cross multiply
    12,013.98x = 18,021.10 × 9,433.32
  4. Step 4: Simplify right side
    12,013.98x = 169,998,803.05
  5. Step 5: Solve for x
    x = 169,998,803.05/12,013.98
  6. Step 6: Final answer
    x = 14,150.08

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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.