Home / 12,384.04-18,576.08-6,540.72

Finding the Fourth Proportional to 12,384.04, 18,576.08 and 6,540.72

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Solution

The fourth proportional to 12,384.04, 18,576.08 and 6,540.72 is: 9,811.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,384.04 : 18,576.08 = 6,540.72 : x
  2. Step 2: Convert to fraction form
    12,384.04/18,576.08 = 6,540.72/x
  3. Step 3: Cross multiply
    12,384.04x = 18,576.08 × 6,540.72
  4. Step 4: Simplify right side
    12,384.04x = 121,500,937.98
  5. Step 5: Solve for x
    x = 121,500,937.98/12,384.04
  6. Step 6: Final answer
    x = 9,811.09

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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.