Home / 12,089.48-18,119.64-6,242.90

Finding the Fourth Proportional to 12,089.48, 18,119.64 and 6,242.90

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Solution

The fourth proportional to 12,089.48, 18,119.64 and 6,242.90 is: 9,356.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,089.48 : 18,119.64 = 6,242.90 : x
  2. Step 2: Convert to fraction form
    12,089.48/18,119.64 = 6,242.90/x
  3. Step 3: Cross multiply
    12,089.48x = 18,119.64 × 6,242.90
  4. Step 4: Simplify right side
    12,089.48x = 113,119,100.56
  5. Step 5: Solve for x
    x = 113,119,100.56/12,089.48
  6. Step 6: Final answer
    x = 9,356.82

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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.