Home / 12,012.16-18,002.40-5,441.44

Finding the Fourth Proportional to 12,012.16, 18,002.40 and 5,441.44

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Solution

The fourth proportional to 12,012.16, 18,002.40 and 5,441.44 is: 8,154.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,012.16 : 18,002.40 = 5,441.44 : x
  2. Step 2: Convert to fraction form
    12,012.16/18,002.40 = 5,441.44/x
  3. Step 3: Cross multiply
    12,012.16x = 18,002.40 × 5,441.44
  4. Step 4: Simplify right side
    12,012.16x = 97,958,979.46
  5. Step 5: Solve for x
    x = 97,958,979.46/12,012.16
  6. Step 6: Final answer
    x = 8,154.98

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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.