Home / 12,178.53-18,267.93-4,387.41

Finding the Fourth Proportional to 12,178.53, 18,267.93 and 4,387.41

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Solution

The fourth proportional to 12,178.53, 18,267.93 and 4,387.41 is: 6,581.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,178.53 : 18,267.93 = 4,387.41 : x
  2. Step 2: Convert to fraction form
    12,178.53/18,267.93 = 4,387.41/x
  3. Step 3: Cross multiply
    12,178.53x = 18,267.93 × 4,387.41
  4. Step 4: Simplify right side
    12,178.53x = 80,148,898.76
  5. Step 5: Solve for x
    x = 80,148,898.76/12,178.53
  6. Step 6: Final answer
    x = 6,581.16

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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.