Home / 12,005.51-18,008.25-6,672.08

Finding the Fourth Proportional to 12,005.51, 18,008.25 and 6,672.08

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Solution

The fourth proportional to 12,005.51, 18,008.25 and 6,672.08 is: 10,008.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,005.51 : 18,008.25 = 6,672.08 : x
  2. Step 2: Convert to fraction form
    12,005.51/18,008.25 = 6,672.08/x
  3. Step 3: Cross multiply
    12,005.51x = 18,008.25 × 6,672.08
  4. Step 4: Simplify right side
    12,005.51x = 120,152,472.78
  5. Step 5: Solve for x
    x = 120,152,472.78/12,005.51
  6. Step 6: Final answer
    x = 10,008.11

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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.