Home / 12,369.09-18,522.87-8,653.92

Finding the Fourth Proportional to 12,369.09, 18,522.87 and 8,653.92

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Solution

The fourth proportional to 12,369.09, 18,522.87 and 8,653.92 is: 12,959.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,369.09 : 18,522.87 = 8,653.92 : x
  2. Step 2: Convert to fraction form
    12,369.09/18,522.87 = 8,653.92/x
  3. Step 3: Cross multiply
    12,369.09x = 18,522.87 × 8,653.92
  4. Step 4: Simplify right side
    12,369.09x = 160,295,461.77
  5. Step 5: Solve for x
    x = 160,295,461.77/12,369.09
  6. Step 6: Final answer
    x = 12,959.36

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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.