Home / 12,568.37-18,864.85-12,509.89

Finding the Fourth Proportional to 12,568.37, 18,864.85 and 12,509.89

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Solution

The fourth proportional to 12,568.37, 18,864.85 and 12,509.89 is: 18,777.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,568.37 : 18,864.85 = 12,509.89 : x
  2. Step 2: Convert to fraction form
    12,568.37/18,864.85 = 12,509.89/x
  3. Step 3: Cross multiply
    12,568.37x = 18,864.85 × 12,509.89
  4. Step 4: Simplify right side
    12,568.37x = 235,997,249.50
  5. Step 5: Solve for x
    x = 235,997,249.50/12,568.37
  6. Step 6: Final answer
    x = 18,777.08

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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.