Home / 13,456.16-18,561.60-8,743.56

Finding the Fourth Proportional to 13,456.16, 18,561.60 and 8,743.56

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Solution

The fourth proportional to 13,456.16, 18,561.60 and 8,743.56 is: 12,060.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,456.16 : 18,561.60 = 8,743.56 : x
  2. Step 2: Convert to fraction form
    13,456.16/18,561.60 = 8,743.56/x
  3. Step 3: Cross multiply
    13,456.16x = 18,561.60 × 8,743.56
  4. Step 4: Simplify right side
    13,456.16x = 162,294,463.30
  5. Step 5: Solve for x
    x = 162,294,463.30/13,456.16
  6. Step 6: Final answer
    x = 12,060.98

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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.