Home / 12,440.49-18,658.65-3,673.32

Finding the Fourth Proportional to 12,440.49, 18,658.65 and 3,673.32

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Solution

The fourth proportional to 12,440.49, 18,658.65 and 3,673.32 is: 5,509.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,440.49 : 18,658.65 = 3,673.32 : x
  2. Step 2: Convert to fraction form
    12,440.49/18,658.65 = 3,673.32/x
  3. Step 3: Cross multiply
    12,440.49x = 18,658.65 × 3,673.32
  4. Step 4: Simplify right side
    12,440.49x = 68,539,192.22
  5. Step 5: Solve for x
    x = 68,539,192.22/12,440.49
  6. Step 6: Final answer
    x = 5,509.36

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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.