Home / 12,117.48-18,174.81-3,353.08

Finding the Fourth Proportional to 12,117.48, 18,174.81 and 3,353.08

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Solution

The fourth proportional to 12,117.48, 18,174.81 and 3,353.08 is: 5,029.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,117.48 : 18,174.81 = 3,353.08 : x
  2. Step 2: Convert to fraction form
    12,117.48/18,174.81 = 3,353.08/x
  3. Step 3: Cross multiply
    12,117.48x = 18,174.81 × 3,353.08
  4. Step 4: Simplify right side
    12,117.48x = 60,941,591.91
  5. Step 5: Solve for x
    x = 60,941,591.91/12,117.48
  6. Step 6: Final answer
    x = 5,029.23

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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.