Home / 13,491.66-18,625.23-12,768.06

Finding the Fourth Proportional to 13,491.66, 18,625.23 and 12,768.06

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Solution

The fourth proportional to 13,491.66, 18,625.23 and 12,768.06 is: 17,626.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,491.66 : 18,625.23 = 12,768.06 : x
  2. Step 2: Convert to fraction form
    13,491.66/18,625.23 = 12,768.06/x
  3. Step 3: Cross multiply
    13,491.66x = 18,625.23 × 12,768.06
  4. Step 4: Simplify right side
    13,491.66x = 237,808,054.15
  5. Step 5: Solve for x
    x = 237,808,054.15/13,491.66
  6. Step 6: Final answer
    x = 17,626.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.