Home / 13,496.80-18,613.52-8,461.64

Finding the Fourth Proportional to 13,496.80, 18,613.52 and 8,461.64

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Solution

The fourth proportional to 13,496.80, 18,613.52 and 8,461.64 is: 11,669.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,496.80 : 18,613.52 = 8,461.64 : x
  2. Step 2: Convert to fraction form
    13,496.80/18,613.52 = 8,461.64/x
  3. Step 3: Cross multiply
    13,496.80x = 18,613.52 × 8,461.64
  4. Step 4: Simplify right side
    13,496.80x = 157,500,905.37
  5. Step 5: Solve for x
    x = 157,500,905.37/13,496.80
  6. Step 6: Final answer
    x = 11,669.50

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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.