Home / 12,491.02-18,730.26-4,168.12

Finding the Fourth Proportional to 12,491.02, 18,730.26 and 4,168.12

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Solution

The fourth proportional to 12,491.02, 18,730.26 and 4,168.12 is: 6,250.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,491.02 : 18,730.26 = 4,168.12 : x
  2. Step 2: Convert to fraction form
    12,491.02/18,730.26 = 4,168.12/x
  3. Step 3: Cross multiply
    12,491.02x = 18,730.26 × 4,168.12
  4. Step 4: Simplify right side
    12,491.02x = 78,069,971.31
  5. Step 5: Solve for x
    x = 78,069,971.31/12,491.02
  6. Step 6: Final answer
    x = 6,250.09

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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.