Home / 13,534.21-18,670.66-8,495.92

Finding the Fourth Proportional to 13,534.21, 18,670.66 and 8,495.92

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Solution

The fourth proportional to 13,534.21, 18,670.66 and 8,495.92 is: 11,720.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,534.21 : 18,670.66 = 8,495.92 : x
  2. Step 2: Convert to fraction form
    13,534.21/18,670.66 = 8,495.92/x
  3. Step 3: Cross multiply
    13,534.21x = 18,670.66 × 8,495.92
  4. Step 4: Simplify right side
    13,534.21x = 158,624,433.71
  5. Step 5: Solve for x
    x = 158,624,433.71/13,534.21
  6. Step 6: Final answer
    x = 11,720.26

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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.