Home / 12,118.46-18,166.68-4,325.45

Finding the Fourth Proportional to 12,118.46, 18,166.68 and 4,325.45

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Solution

The fourth proportional to 12,118.46, 18,166.68 and 4,325.45 is: 6,484.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,118.46 : 18,166.68 = 4,325.45 : x
  2. Step 2: Convert to fraction form
    12,118.46/18,166.68 = 4,325.45/x
  3. Step 3: Cross multiply
    12,118.46x = 18,166.68 × 4,325.45
  4. Step 4: Simplify right side
    12,118.46x = 78,578,975.17
  5. Step 5: Solve for x
    x = 78,578,975.17/12,118.46
  6. Step 6: Final answer
    x = 6,484.24

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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.