Home / 12,318.84-18,477.36-4,000.92

Finding the Fourth Proportional to 12,318.84, 18,477.36 and 4,000.92

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Solution

The fourth proportional to 12,318.84, 18,477.36 and 4,000.92 is: 6,001.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,318.84 : 18,477.36 = 4,000.92 : x
  2. Step 2: Convert to fraction form
    12,318.84/18,477.36 = 4,000.92/x
  3. Step 3: Cross multiply
    12,318.84x = 18,477.36 × 4,000.92
  4. Step 4: Simplify right side
    12,318.84x = 73,926,439.17
  5. Step 5: Solve for x
    x = 73,926,439.17/12,318.84
  6. Step 6: Final answer
    x = 6,001.09

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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.