Home / 12,618.33-18,931.01-11,241.20

Finding the Fourth Proportional to 12,618.33, 18,931.01 and 11,241.20

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Solution

The fourth proportional to 12,618.33, 18,931.01 and 11,241.20 is: 16,864.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,618.33 : 18,931.01 = 11,241.20 : x
  2. Step 2: Convert to fraction form
    12,618.33/18,931.01 = 11,241.20/x
  3. Step 3: Cross multiply
    12,618.33x = 18,931.01 × 11,241.20
  4. Step 4: Simplify right side
    12,618.33x = 212,807,118.75
  5. Step 5: Solve for x
    x = 212,807,118.75/12,618.33
  6. Step 6: Final answer
    x = 16,864.92

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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.