Home / 13,739.06-18,960.63-8,701.43

Finding the Fourth Proportional to 13,739.06, 18,960.63 and 8,701.43

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Solution

The fourth proportional to 13,739.06, 18,960.63 and 8,701.43 is: 12,008.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,739.06 : 18,960.63 = 8,701.43 : x
  2. Step 2: Convert to fraction form
    13,739.06/18,960.63 = 8,701.43/x
  3. Step 3: Cross multiply
    13,739.06x = 18,960.63 × 8,701.43
  4. Step 4: Simplify right side
    13,739.06x = 164,984,499.90
  5. Step 5: Solve for x
    x = 164,984,499.90/13,739.06
  6. Step 6: Final answer
    x = 12,008.43

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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.